一元一次方程答案及过程 一元一次方程，，过程+答案 练习题

\u6c42\u4e8c\u5341\u9053\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\uff08\u542b\u6b65\u9aa4\u7b54\u6848\uff09

\u4e00\u3001\u89e3\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u7684\u6b65\u9aa4\uff1a
1\u3001\u5982\u56fe\u6240\u793a\uff0c\u6709\u4e00\u4e2a\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b3x+4=10\uff0c\u6211\u4eec\u8981\u6c42\u89e3\u8fd9\u4e2a\u65b9\u7a0b\u7684x\u7684\u503c\u3002

2\u3001\u9996\u5148\uff0c\u5bf9\u65b9\u7a0b\u8fdb\u884c\u79fb\u9879\uff0c\u5c06\u5e38\u6570\u9879\u79fb\u5230\u7b49\u53f7\u53f3\u8fb9\uff0c\u5c31\u5f97\u52303x=10-4\u8fd9\u6837\u4e00\u4e2a\u65b9\u7a0b\u3002

3\u3001\u63a5\u7740\u6211\u4eec\u7b97\u51fa\u65b9\u7a0b\u53f3\u8fb9\u7684\u503c\uff0c\u56e0\u4e3a10-4=6\uff0c\u5219\u67093x=6\uff0c\u5982\u56fe\u6240\u793a\u3002

4\u3001\u6211\u4eec\u5c06\u65b9\u7a0b\u5de6\u53f3\u540c\u65f6\u9664\u4ee5\u4e09\uff0c\u4f7f\u5f97x\u7684\u7cfb\u6570\u4e3a1\u3002

5\u3001\u6700\u540e\uff0c\u6211\u4eec\u8fd9\u6837\u5c31\u89e3\u51fa\u4e86x\u7684\u503c\uff0cx=2\u3002

\u6269\u5c55\u8d44\u6599\uff1a
\u4e00\u5143\u4e00\u6b21\u89e3\u65b9\u7a0b\u4f8b\u9898\uff1a
\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u53ea\u6709\u4e00\u4e2a\u672a\u77e5\u6570\uff0c\u4f8b\u5b50\uff1a4x+5=2x+8
\u6b65\u9aa4\uff1a
1\u3001\u79fb\u9879,\u5c31\u662f\u628a\u6709\u672a\u77e5\u6570\uff08\u4f8b\u5982\uff1ax)\u7684\u9879\u901a\u901a\u79fb\u5230\u4e00\u8fb9,\u5176\u4ed6\u79fb\u5230\u53e6\u4e00\u534a\u3002\u4f8b\u9898\u4e2d\u5c31\u662f\uff1a4x-2x=8-5
2\u3001\u5408\u5e76\u540c\u7c7b\u9879 \u628a\u6709\u672a\u77e5\u6570\u7684\u80fd\u5408\u5e76\u5c31\u5408\u5e76 \u6570\u5b57\u80fd\u52a0\u51cf\u4e58\u9664\u7684\u90fd\u52a0\u51cf\u4e58\u9664\uff1a2x=3
3\u3001\u89e3\uff1a\u6ca1\u6709\u672a\u77e5\u6570\u7684\u90a3\u8fb9\u9664\u4ee5\u6709\u672a\u77e5\u6570\u7684\u90a3\u8fb9\uff1ax=3/2
\u4e8c\u3001\u5982\uff1ax+8=x+6
2x\uff08x+x\uff09=14 (8+6)
x=7 (14\u9664\u4ee52)
\u6240\u6709\u7684\u89e3\u6cd5\u90fd\u4e00\u6837\u3002\u5982\u679c\u662f\u5e94\u7528\u9898\uff1a3\u4e2a\u82f9\u679c \u82b1\u4e8612\u5143 \u82f9\u679c\u51e0\u5143\uff0c\u8fd9\u9053\u9898\u6240\u6709\u4eba\u7684\u505a\u6cd5\u4e00\u5b9a\u662f\uff1a12\u9664\u4ee53\u7b49\u4e8e4\uff0c\u8fd9\u5c31\u51fa\u81ea\u65b9\u7a0b\u3002
\u8bbe\uff1a\u4e00\u4e2a\u82f9\u679c\u662fx\u5143
12=3x
x=4
\u4e09\u3001\u89e3\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u65f6\uff0c\u4e3b\u8981\u8fd0\u7528\u4e86\u65b9\u7a0b\u53d8\u5f62\u7684\u4e24\u4e2a\u89c4\u5219\uff0c\u5177\u4f53\u6b65\u9aa4\u5305\u62ec\uff1a
1\u3001\u53bb\u5206\u6bcd
2\u3001\u53bb\u62ec\u53f7
3\u3001\u79fb\u9879
4\u3001\u5408\u5e76\u540c\u7c7b\u9879
5\u3001\u5316\u672a\u77e5\u6570\u7cfb\u6570\u4e3a1
\u56db\u3001\u79fb\u9879\uff1a
1\u3001\u5408\u5e76\u540c\u7c7b\u9879
2\u3001\u7cfb\u6570\u53161
3\u3001\u53bb\u5206\u6bcd
4\u3001\u53bb\u62ec\u53f7
5\u3001\u79fb\u9879
6\u3001\u5408\u5e76\u540c\u5217\u9879
7\u3001\u7cfb\u6570\u5316\u4e00\uff08\u7cfb\u6570\u5c31\u662f\u672a\u77e5\u6570\uff09

1\uff0e\u5df2\u77e54x2n-5+5=0\u662f\u5173\u4e8ex\u7684\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\uff0c\u5219n=_______\uff0e
2\uff0e\u82e5x=-1\u662f\u65b9\u7a0b2x-3a=7\u7684\u89e3\uff0c\u5219a=_______\uff0e
3\uff0e\u5f53x=______\u65f6\uff0c\u4ee3\u6570\u5f0f x-1\u548c \u7684\u503c\u4e92\u4e3a\u76f8\u53cd\u6570\uff0e
4\uff0e\u5df2\u77e5x\u7684 \u4e0ex\u76843\u500d\u7684\u548c\u6bd4x\u76842\u500d\u5c116\uff0c\u5217\u51fa\u65b9\u7a0b\u4e3a________\uff0e
5\uff0e\u5728\u65b9\u7a0b4x+3y=1\u4e2d\uff0c\u7528x\u7684\u4ee3\u6570\u5f0f\u8868\u793ay\uff0c\u5219y=________\uff0e
6\uff0e\u67d0\u5546\u54c1\u7684\u8fdb\u4ef7\u4e3a300\u5143\uff0c\u6309\u6807\u4ef7\u7684\u516d\u6298\u9500\u552e\u65f6\uff0c\u5229\u6da6\u7387\u4e3a5%\uff0c\u5219\u5546\u54c1\u7684\u6807\u4ef7\u4e3a____\u5143\uff0e
7\uff0e\u5df2\u77e5\u4e09\u4e2a\u8fde\u7eed\u7684\u5076\u6570\u7684\u548c\u4e3a60\uff0c\u5219\u8fd9\u4e09\u4e2a\u6570\u662f________\uff0e
8\uff0e\u4e00\u4ef6\u5de5\u4f5c\uff0c\u7532\u5355\u72ec\u505a\u97006\u5929\u5b8c\u6210\uff0c\u4e59\u5355\u72ec\u505a\u970012\u5929\u5b8c\u6210\uff0c\u82e5\u7532\u3001\u4e59\u4e00\u8d77\u505a\uff0c\u5219\u9700________\u5929\u5b8c\u6210\uff0e
\u4e8c\u3001\u9009\u62e9\u9898\uff0e\uff08\u6bcf\u5c0f\u98983\u5206\uff0c\u517130\u5206\uff09
9\uff0e\u65b9\u7a0b2m+x=1\u548c3x-1=2x+1\u6709\u76f8\u540c\u7684\u89e3\uff0c\u5219m\u7684\u503c\u4e3a\uff08 \uff09\uff0e
A\uff0e0 B\uff0e1 C\uff0e-2 D\uff0e-
10\uff0e\u65b9\u7a0b\u25023x\u2502=18\u7684\u89e3\u7684\u60c5\u51b5\u662f\uff08 \uff09\uff0e
A\uff0e\u6709\u4e00\u4e2a\u89e3\u662f6 B\uff0e\u6709\u4e24\u4e2a\u89e3\uff0c\u662f\u00b16
C\uff0e\u65e0\u89e3 D\uff0e\u6709\u65e0\u6570\u4e2a\u89e3
11\uff0e\u82e5\u65b9\u7a0b2ax-3=5x+b\u65e0\u89e3\uff0c\u5219a\uff0cb\u5e94\u6ee1\u8db3\uff08 \uff09\uff0e
A\uff0ea\u2260 \uff0cb\u22603 B\uff0ea= \uff0cb=-3
C\uff0ea\u2260 \uff0cb=-3 D\uff0ea= \uff0cb\u2260-3
12\uff0e\u628a\u65b9\u7a0b \u7684\u5206\u6bcd\u5316\u4e3a\u6574\u6570\u540e\u7684\u65b9\u7a0b\u662f\uff08 \uff09\uff0e

13\uff0e\u5728800\u7c73\u8dd1\u9053\u4e0a\u6709\u4e24\u4eba\u7ec3\u4e2d\u957f\u8dd1\uff0c\u7532\u6bcf\u5206\u949f\u8dd1300\u7c73\uff0c\u4e59\u6bcf\u5206\u949f\u8dd1260\u7c73\uff0c\u4e24\u4eba\u540c\u5730\u3001\u540c\u65f6\u3001\u540c\u5411\u8d77\u8dd1\uff0ct\u5206\u949f\u540e\u7b2c\u4e00\u6b21\u76f8\u9047\uff0ct\u7b49\u4e8e\uff08 \uff09\uff0e
A\uff0e10\u5206 B\uff0e15\u5206 C\uff0e20\u5206 D\uff0e30\u5206
14\uff0e\u67d0\u5546\u573a\u5728\u7edf\u8ba1\u4eca\u5e74\u7b2c\u4e00\u5b63\u5ea6\u7684\u9500\u552e\u989d\u65f6\u53d1\u73b0\uff0c\u4e8c\u6708\u4efd\u6bd4\u4e00\u6708\u4efd\u589e\u52a0\u4e8610%\uff0c\u4e09\u6708\u4efd\u6bd4\u4e8c\u6708\u4efd\u51cf\u5c11\u4e8610%\uff0c\u5219\u4e09\u6708\u4efd\u7684\u9500\u552e\u989d\u6bd4\u4e00\u6708\u4efd\u7684\u9500\u552e\u989d\uff08 \uff09\uff0e
A\uff0e\u589e\u52a010% B\uff0e\u51cf\u5c1110% C\uff0e\u4e0d\u589e\u4e5f\u4e0d\u51cf D\uff0e\u51cf\u5c111%
15\uff0e\u5728\u68af\u5f62\u9762\u79ef\u516c\u5f0fS= \uff08a+b\uff09h\u4e2d\uff0c\u5df2\u77e5h=6\u5398\u7c73\uff0ca=3\u5398\u7c73\uff0cS=24\u5e73\u65b9\u5398\u7c73\uff0c\u5219b=\uff08 \uff09\u5398\u7c73\uff0e
A\uff0e1 B\uff0e5 C\uff0e3 D\uff0e4
16\uff0e\u5df2\u77e5\u7532\u7ec4\u670928\u4eba\uff0c\u4e59\u7ec4\u670920\u4eba\uff0c\u5219\u4e0b\u5217\u8c03\u914d\u65b9\u6cd5\u4e2d\uff0c\u80fd\u4f7f\u4e00\u7ec4\u4eba\u6570\u4e3a\u53e6\u4e00\u7ec4\u4eba\u6570\u7684\u4e00\u534a\u7684\u662f\uff08 \uff09\uff0e
A\uff0e\u4ece\u7532\u7ec4\u8c0312\u4eba\u53bb\u4e59\u7ec4 B\uff0e\u4ece\u4e59\u7ec4\u8c034\u4eba\u53bb\u7532\u7ec4
C\uff0e\u4ece\u4e59\u7ec4\u8c0312\u4eba\u53bb\u7532\u7ec4
D\uff0e\u4ece\u7532\u7ec4\u8c0312\u4eba\u53bb\u4e59\u7ec4\uff0c\u6216\u4ece\u4e59\u7ec4\u8c034\u4eba\u53bb\u7532\u7ec4
17\uff0e\u8db3\u7403\u6bd4\u8d5b\u7684\u89c4\u5219\u4e3a\u80dc\u4e00\u573a\u5f973\u5206\uff0c\u5e73\u4e00\u573a\u5f971\u5206\uff0c\u8d1f\u4e00\u573a\u662f0\u5206\uff0c\u4e00\u4e2a\u961f\u6253\u4e8614\u573a\u6bd4\u8d5b\uff0c\u8d1f\u4e865\u573a\uff0c\u5171\u5f9719\u5206\uff0c\u90a3\u4e48\u8fd9\u4e2a\u961f\u80dc\u4e86\uff08 \uff09\u573a\uff0e
A\uff0e3 B\uff0e4 C\uff0e5 D\uff0e6
18\uff0e\u5982\u56fe\u6240\u793a\uff0c\u5728\u7532\u56fe\u4e2d\u7684\u5de6\u76d8\u4e0a\u5c062\u4e2a\u7269\u54c1\u53d6\u4e0b\u4e00\u4e2a\uff0c\u5219\u5728\u4e59\u56fe\u4e2d\u53f3\u76d8\u4e0a\u53d6\u4e0b\u51e0\u4e2a\u781d\u7801\u624d\u80fd\u4f7f\u5929\u5e73\u4ecd\u7136\u5e73\u8861\uff1f\uff08 \uff09
A\uff0e3\u4e2a B\uff0e4\u4e2a C\uff0e5\u4e2a D\uff0e6\u4e2a

\u4e09\u3001\u89e3\u7b54\u9898\uff0e\uff0819\uff0c20\u9898\u6bcf\u98986\u5206\uff0c21\uff0c22\u9898\u6bcf\u98987\u5206\uff0c23\uff0c24\u9898\u6bcf\u989810\u5206\uff0c\u517146\u5206\uff09
19\uff0e\u89e3\u65b9\u7a0b\uff1a -9.5\uff0e












20\uff0e\u89e3\u65b9\u7a0b\uff1a \uff08x-1\uff09- \uff083x+2\uff09= - \uff08x-1\uff09\uff0e










21\uff0e\u5982\u56fe\u6240\u793a\uff0c\u5728\u4e00\u5757\u5c55\u793a\u724c\u4e0a\u6574\u9f50\u5730\u8d34\u7740\u8bb8\u591a\u8d44\u6599\u5361\u7247\uff0c\u8fd9\u4e9b\u5361\u7247\u7684\u5927\u5c0f\u76f8\u540c\uff0c\u5361\u7247\u4e4b\u95f4\u9732\u51fa\u4e86\u4e09\u5757\u6b63\u65b9\u5f62\u7684\u7a7a\u767d\uff0c\u5728\u56fe\u4e2d\u7528\u659c\u7ebf\u6807\u660e\uff0e\u5df2\u77e5\u5361\u7247\u7684\u77ed\u8fb9\u957f\u5ea6\u4e3a10\u5398\u7c73\uff0c\u60f3\u8981\u914d\u4e09\u5f20\u56fe\u7247\u6765\u586b\u8865\u7a7a\u767d\uff0c\u9700\u8981\u914d\u591a\u5927\u5c3a\u5bf8\u7684\u56fe\u7247\uff0e







22\uff0e\u4e00\u4e2a\u4e09\u4f4d\u6570\uff0c\u767e\u4f4d\u4e0a\u7684\u6570\u5b57\u6bd4\u5341\u4f4d\u4e0a\u7684\u6570\u59271\uff0c\u4e2a\u4f4d\u4e0a\u7684\u6570\u5b57\u6bd4\u5341\u4f4d\u4e0a\u6570\u5b57\u76843\u500d\u5c112\uff0e\u82e5\u5c06\u4e09\u4e2a\u6570\u5b57\u987a\u5e8f\u98a0\u5012\u540e\uff0c\u6240\u5f97\u7684\u4e09\u4f4d\u6570\u4e0e\u539f\u4e09\u4f4d\u6570\u7684\u548c\u662f1171\uff0c\u6c42\u8fd9\u4e2a\u4e09\u4f4d\u6570\uff0e










23\uff0e\u636e\u4e86\u89e3\uff0c\u706b\u8f66\u7968\u4ef7\u6309\u201c \u201d\u7684\u65b9\u6cd5\u6765\u786e\u5b9a\uff0e\u5df2\u77e5A\u7ad9\u81f3H\u7ad9\u603b\u91cc\u7a0b\u6570\u4e3a1500\u5343\u7c73\uff0c\u5168\u7a0b\u53c2\u8003\u4ef7\u4e3a180\u5143\uff0e\u4e0b\u8868\u662f\u6cbf\u9014\u5404\u7ad9\u81f3H\u7ad9\u7684\u91cc\u7a0b\u6570\uff1a
\u8f66\u7ad9\u540d A B C D E F G H
\u5404\u7ad9\u81f3H\u7ad9
\u91cc\u7a0b\u6570\uff08\u7c73\uff09 1500 1130 910 622 402 219 72 0
\u4f8b\u5982\uff1a\u8981\u786e\u5b9a\u4eceB\u7ad9\u81f3E\u7ad9\u706b\u8f66\u7968\u4ef7\uff0c\u5176\u7968\u4ef7\u4e3a =87.36\u224887\uff08\u5143\uff09\uff0e
\uff081\uff09\u6c42A\u7ad9\u81f3F\u7ad9\u7684\u706b\u8f66\u7968\u4ef7\uff08\u7ed3\u679c\u7cbe\u786e\u52301\u5143\uff09\uff0e
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24\uff0e\u67d0\u516c\u56ed\u7684\u95e8\u7968\u4ef7\u683c\u89c4\u5b9a\u5982\u4e0b\u8868\uff1a
\u8d2d\u7968\u4eba\u6570 1~50\u4eba 51~100\u4eba 100\u4eba\u4ee5\u4e0a
\u7968 \u4ef7 5\u5143 4.5\u5143 4\u5143
\u67d0\u6821\u521d\u4e00\u7532\u3001\u4e59\u4e24\u73ed\u5171103\u4eba\uff08\u5176\u4e2d\u7532\u73ed\u4eba\u6570\u591a\u4e8e\u4e59\u73ed\u4eba\u6570\uff09\u53bb\u6e38\u8be5\u516c\u56ed\uff0c\u5982\u679c\u4e24\u73ed\u90fd\u4ee5\u73ed\u4e3a\u5355\u4f4d\u5206\u522b\u8d2d\u7968\uff0c\u5219\u4e00\u5171\u9700\u4ed8486\u5143\uff0e
\uff081\uff09\u5982\u679c\u4e24\u73ed\u8054\u5408\u8d77\u6765\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u56e2\u4f53\u8d2d\u7968\uff0c\u5219\u53ef\u4ee5\u8282\u7ea6\u591a\u5c11\u94b1\uff1f
\uff082\uff09\u4e24\u73ed\u5404\u6709\u591a\u5c11\u540d\u5b66\u751f\uff1f\uff08\u63d0\u793a\uff1a\u672c\u9898\u5e94\u5206\u60c5\u51b5\u8ba8\u8bba\uff09









\u7b54\u6848:
\u4e00\u30011\uff0e3
2\uff0e-3 \uff08\u70b9\u62e8\uff1a\u5c06x=-1\u4ee3\u5165\u65b9\u7a0b2x-3a=7\uff0c\u5f97-2-3a=7\uff0c\u5f97a=-3\uff09
3\uff0e \uff08\u70b9\u62e8\uff1a\u89e3\u65b9\u7a0b x-1=- \uff0c\u5f97x= \uff09
4\uff0e x+3x=2x-6 5\uff0ey= - x
6\uff0e525 \uff08\u70b9\u62e8\uff1a\u8bbe\u6807\u4ef7\u4e3ax\u5143\uff0c\u5219 =5%\uff0c\u89e3\u5f97x=525\u5143\uff09
7\uff0e18\uff0c20\uff0c22
8\uff0e4 [\u70b9\u62e8\uff1a\u8bbe\u9700x\u5929\u5b8c\u6210\uff0c\u5219x\uff08 + \uff09=1\uff0c\u89e3\u5f97x=4]
\u4e8c\u30019\uff0eD
10\uff0eB \uff08\u70b9\u62e8\uff1a\u7528\u5206\u7c7b\u8ba8\u8bba\u6cd5\uff1a
\u5f53x\u22650\u65f6\uff0c3x=18\uff0c\u2234x=6
\u5f53x<0\u65f6\uff0c-3=18\uff0c\u2234x=-6
\u6545\u672c\u9898\u5e94\u9009B\uff09
11\uff0eD \uff08\u70b9\u62e8\uff1a\u75312ax-3=5x+b\uff0c\u5f97\uff082a-5\uff09x=b+3\uff0c\u6b32\u4f7f\u65b9\u7a0b\u65e0\u89e3\uff0c\u5fc5\u987b\u4f7f2a-5=0\uff0ca= \uff0cb+3\u22600\uff0cb\u2260-3\uff0c\u6545\u672c\u9898\u5e94\u9009D\uff0e\uff09
12\uff0eB \uff08\u70b9\u62e8\uff1b\u5728\u53d8\u5f62\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5229\u7528\u5206\u5f0f\u7684\u6027\u8d28\u5c06\u5206\u5f0f\u7684\u5206\u5b50\u3001\u5206\u6bcd\u540c\u65f6\u6269\u5927\u6216\u7f29\u5c0f\u76f8\u540c\u7684\u500d\u6570\uff0c\u5c06\u5c0f\u6570\u65b9\u7a0b\u53d8\u4e3a\u6574\u6570\u65b9\u7a0b\uff09
13\uff0eC \uff08\u70b9\u62e8\uff1a\u5f53\u7532\u3001\u4e59\u4e24\u4eba\u518d\u6b21\u76f8\u9047\u65f6\uff0c\u7532\u6bd4\u4e59\u591a\u8dd1\u4e86800\u7c73\uff0c\u5217\u65b9\u7a0b\u5f97260t+800=300t\uff0c\u89e3\u5f97t=20\uff09
14\uff0eD
15\uff0eB \uff08\u70b9\u62e8\uff1a\u7531\u516c\u5f0fS= \uff08a+b\uff09h\uff0c\u5f97b= -3=5\u5398\u7c73\uff09
16\uff0eD 17\uff0eC
18\uff0eA \uff08\u70b9\u62e8\uff1a\u6839\u636e\u7b49\u5f0f\u7684\u6027\u8d282\uff09
\u4e09\u300119\uff0e\u89e3\uff1a\u539f\u65b9\u7a0b\u53d8\u5f62\u4e3a
200\uff082-3y\uff09-4.5= -9.5
\u2234400-600y-4.5=1-100y-9.5
500y=404
\u2234y=
20\uff0e\u89e3\uff1a\u53bb\u5206\u6bcd\uff0c\u5f97
15\uff08x-1\uff09-8\uff083x+2\uff09=2-30\uff08x-1\uff09
\u223421x=63
\u2234x=3
21\uff0e\u89e3\uff1a\u8bbe\u5361\u7247\u7684\u957f\u5ea6\u4e3ax\u5398\u7c73\uff0c\u6839\u636e\u56fe\u610f\u548c\u9898\u610f\uff0c\u5f97
5x=3\uff08x+10\uff09\uff0c\u89e3\u5f97x=15
\u6240\u4ee5\u9700\u914d\u6b63\u65b9\u5f62\u56fe\u7247\u7684\u8fb9\u957f\u4e3a15-10=5\uff08\u5398\u7c73\uff09
\u7b54\uff1a\u9700\u8981\u914d\u8fb9\u957f\u4e3a5\u5398\u7c73\u7684\u6b63\u65b9\u5f62\u56fe\u7247\uff0e
22\uff0e\u89e3\uff1a\u8bbe\u5341\u4f4d\u4e0a\u7684\u6570\u5b57\u4e3ax\uff0c\u5219\u4e2a\u4f4d\u4e0a\u7684\u6570\u5b57\u4e3a3x-2\uff0c\u767e\u4f4d\u4e0a\u7684\u6570\u5b57\u4e3ax+1\uff0c\u6545
100\uff08x+1\uff09+10x+\uff083x-2\uff09+100\uff083x-2\uff09+10x+\uff08x+1\uff09=1171
\u89e3\u5f97x=3
\u7b54\uff1a\u539f\u4e09\u4f4d\u6570\u662f437\uff0e
23\uff0e\u89e3\uff1a\uff081\uff09\u7531\u5df2\u77e5\u53ef\u5f97 =0.12
A\u7ad9\u81f3H\u7ad9\u7684\u5b9e\u9645\u91cc\u7a0b\u6570\u4e3a1500-219=1281\uff08\u5343\u7c73\uff09
\u6240\u4ee5A\u7ad9\u81f3F\u7ad9\u7684\u706b\u8f66\u7968\u4ef7\u4e3a0.12\u00d71281=153.72\u2248154\uff08\u5143\uff09
\uff082\uff09\u8bbe\u738b\u5927\u5988\u5b9e\u9645\u4e58\u8f66\u91cc\u7a0b\u6570\u4e3ax\u5343\u7c73\uff0c\u6839\u636e\u9898\u610f\uff0c\u5f97 =66
\u89e3\u5f97x=550\uff0c\u5bf9\u7167\u8868\u683c\u53ef\u77e5\uff0cD\u7ad9\u4e0eG\u7ad9\u8ddd\u79bb\u4e3a550\u5343\u7c73\uff0c\u6240\u4ee5\u738b\u5927\u5988\u662f\u5728D\u7ad9\u6216G\u7ad9\u4e0b\u7684\u8f66\uff0e
24\uff0e\u89e3\uff1a\uff081\uff09\u2235103>100
\u2234\u6bcf\u5f20\u95e8\u7968\u63094\u5143\u6536\u8d39\u7684\u603b\u7968\u989d\u4e3a103\u00d74=412\uff08\u5143\uff09
\u53ef\u8282\u7701486-412=74\uff08\u5143\uff09
\uff082\uff09\u2235\u7532\u3001\u4e59\u4e24\u73ed\u5171103\u4eba\uff0c\u7532\u73ed\u4eba\u6570>\u4e59\u73ed\u4eba\u6570
\u2234\u7532\u73ed\u591a\u4e8e50\u4eba\uff0c\u4e59\u73ed\u6709\u4e24\u79cd\u60c5\u5f62\uff1a
\u2460\u82e5\u4e59\u73ed\u5c11\u4e8e\u6216\u7b49\u4e8e50\u4eba\uff0c\u8bbe\u4e59\u73ed\u6709x\u4eba\uff0c\u5219\u7532\u73ed\u6709\uff08103-x\uff09\u4eba\uff0c\u4f9d\u9898\u610f\uff0c\u5f97
5x+4.5\uff08103-x\uff09=486
\u89e3\u5f97x=45\uff0c\u2234103-45=58\uff08\u4eba\uff09
\u5373\u7532\u73ed\u670958\u4eba\uff0c\u4e59\u73ed\u670945\u4eba\uff0e
\u2461\u82e5\u4e59\u73ed\u8d85\u8fc750\u4eba\uff0c\u8bbe\u4e59\u73edx\u4eba\uff0c\u5219\u7532\u73ed\u6709\uff08103-x\uff09\u4eba\uff0c
\u6839\u636e\u9898\u610f\uff0c\u5f97
4.5x+4.5\uff08103-x\uff09=486
\u2235\u6b64\u7b49\u5f0f\u4e0d\u6210\u7acb\uff0c\u2234\u8fd9\u79cd\u60c5\u51b5\u4e0d\u5b58\u5728\uff0e
\u6545\u7532\u73ed\u4e3a58\u4eba\uff0c\u4e59\u73ed\u4e3a45\u4eba\uff0e


\u8ba1\u7b97\u9898
0.4(x-0.2)+1.5=0.7x-0.38
x=6

30x-10(10-x)=100
x=5

4(x+2)=5(x-2)
x=18

120-4(x+5)=25
x=18.75

15x+863-65x=54
x=16.18

3(x-2)+1=x-(2x-1)
x=3/2

11x+64-2x=100-9x
x=2

x+2=6 \u5219x=4 150\uff08x+12\uff09=240x \u5219x=20 2x:3=6:5 \u5219x=9/5 5y+7y=12 \u5219y=1
x-2=6 \u5219x=8 2x+3=x-1 \u5219x=-4 6x-6=9x \u5219x=-2 8x-2=7x-2 \u5219x=4
2x+4x=0 \u5219x=0 3x-4+2x=4x-3 \u5219x=1 7x-6=-5x \u5219x=3 2y=9 \u5219y=2/9
x/2=x+6 \u5219x=12 2.4x-9.8=1.4x-9 \u5219x=0.8 x+9=18 \u5219x=2 5/2+3y=5/2 \u5219y=0
3x=63 \u5219x=21 x/2+1=x \u5219x=2 4z+1=8z \u5219z=4 8+x+x=6 \u5219x=-1

(1) 66x+17y=3967 25x+y=1200 答案：x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案：x=27 y=79 (3) 44x+90y=7796 44x+y=3476 答案：x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案：x=98 y=51 (5) 67x+54y=8546 71x-y=5680 答案：x=80 y=59 (6) 42x-95y=-1410 21x-y=1575 答案：x=75 y=48 (7) 47x-40y=853 34x-y=2006 答案：x=59 y=48 (8) 19x-32y=-1786 75x+y=4950 答案：x=66 y=95 (9) 97x+24y=7202 58x-y=2900 答案：x=50 y=98 (10) 42x+85y=6362 63x-y=1638 答案：x=26 y=62 (11) 85x-92y=-2518 27x-y=486 答案：x=18 y=44 (12) 79x+40y=2419 56x-y=1176 答案：x=21 y=19 (13) 80x-87y=2156 22x-y=880 答案：x=40 y=12 (14) 32x+62y=5134 57x+y=2850 答案：x=50 y=57 (15) 83x-49y=82 59x+y=2183 答案：x=37 y=61 (16) 91x+70y=5845 95x-y=4275 答案：x=45 y=25 (17) 29x+44y=5281 88x-y=3608 答案：x=41 y=93 (18) 25x-95y=-4355 40x-y=2000 答案：x=50 y=59 (19) 54x+68y=3284 78x+y=1404 答案：x=18 y=34 (20) 70x+13y=3520 52x+y=2132 答案：x=41 y=50 (21) 48x-54y=-3186 24x+y=1080 答案：x=45 y=99 (22) 36x+77y=7619 47x-y=799 答案：x=17 y=91 (23) 13x-42y=-2717 31x-y=1333 答案：x=43 y=78 (24) 28x+28y=3332 52x-y=4628 答案：x=89 y=30 (25) 62x-98y=-2564 46x-y=2024 答案：x=44 y=54 (26) 79x-76y=-4388 26x-y=832 答案：x=32 y=91 (27) 63x-40y=-821 42x-y=546 答案：x=13 y=41 (28) 69x-96y=-1209 42x+y=3822 答案：x=91 y=78 (29) 85x+67y=7338 11x+y=308 答案：x=28 y=74 (30) 78x+74y=12928 14x+y=1218 答案：x=87 y=83 (31) 39x+42y=5331 59x-y=5841 答案：x=99 y=35 (32) 29x+18y=1916 58x+y=2320 答案：x=40 y=42 (33) 40x+31y=6043 45x-y=3555 答案：x=79 y=93 (34) 47x+50y=8598 45x+y=3780 答案：x=84 y=93 (35) 45x-30y=-1455 29x-y=725 答案：x=25 y=86 (36) 11x-43y=-1361 47x+y=799 答案：x=17 y=36 (37) 33x+59y=3254 94x+y=1034 答案：x=11 y=49 (38) 89x-74y=-2735 68x+y=1020 答案：x=15 y=55 (39) 94x+71y=7517 78x+y=3822 答案：x=49 y=41 (40) 28x-62y=-4934 46x+y=552 答案：x=12 y=85 (41) 75x+43y=8472 17x-y=1394 答案：x=82 y=54 (42) 41x-38y=-1180 29x+y=1450 答案：x=50 y=85 (43) 22x-59y=824 63x+y=4725 答案：x=75 y=14 (44) 95x-56y=-401 90x+y=1530 答案：x=17 y=36 (45) 93x-52y=-852 29x+y=464 答案：x=16 y=45 (46) 93x+12y=8823 54x+y=4914 答案：x=91 y=30 (47) 21x-63y=84 20x+y=1880 答案：x=94 y=30 (48) 48x+93y=9756 38x-y=950 答案：x=25 y=92 (49) 99x-67y=4011 75x-y=5475 答案：x=73 y=48 (50) 83x+64y=9291 90x-y=3690 答案：x=41 y=92 (51) 17x+62y=3216 75x-y=7350 答案：x=98 y=25 (52) 77x+67y=2739 14x-y=364 答案：x=26 y=11 (53) 20x-68y=-4596 14x-y=924 答案：x=66 y=87 (54) 23x+87y=4110 83x-y=5727 答案：x=69 y=29 (55) 22x-38y=804 86x+y=6708 答案：x=78 y=24 (56) 20x-45y=-3520 56x+y=728 答案：x=13 y=84 (57) 46x+37y=7085 61x-y=4636 答案：x=76 y=97 (58) 17x+61y=4088 71x+y=5609 答案：x=79 y=45 (59) 51x-61y=-1907 89x-y=2314 答案：x=26 y=53 (60) 69x-98y=-2404 21x+y=1386 答案：x=66 y=71 (61) 15x-41y=754 74x-y=6956 答案：x=94 y=16 (62) 78x-55y=656 89x+y=5518 答案：x=62 y=76 (63) 29x+21y=1633 31x-y=713 答案：x=23 y=46 (64) 58x-28y=2724 35x+y=3080 答案：x=88 y=85 (65) 28x-63y=-2254 88x-y=2024 答案：x=23 y=46 (66) 43x+50y=7064 85x+y=8330 答案：x=98 y=57 (67) 58x-77y=1170 38x-y=2280 答案：x=60 y=30 (68) 92x+83y=11586 43x+y=3010 答案：x=70 y=62 (69) 99x+82y=6055 52x-y=1716 答案：x=33 y=34 (70) 15x+26y=1729 94x+y=8554 答案：x=91 y=14 (71) 64x+32y=3552 56x-y=2296 答案：x=41 y=29 (72) 94x+66y=10524 84x-y=7812 答案：x=93 y=27 (73) 65x-79y=-5815 89x+y=2314 答案：x=26 y=95 (74) 96x+54y=6216 63x-y=1953 答案：x=31 y=60 (75) 60x-44y=-352 33x-y=1452 答案：x=44 y=68 (76) 79x-45y=510 14x-y=840 答案：x=60 y=94 (77) 29x-35y=-218 59x-y=4897 答案：x=83 y=75 (78) 33x-24y=1905 30x+y=2670 答案：x=89 y=43 (79) 61x+94y=11800 93x+y=5952 答案：x=64 y=84 (80) 61x+90y=5001 48x+y=2448 答案：x=51 y=21 (81) 93x-19y=2 86x-y=1548 答案：x=18 y=88 (82) 19x-96y=-5910 30x-y=2340 答案：x=78 y=77 (83) 80x+74y=8088 96x-y=8640 答案：x=90 y=12 (84) 53x-94y=1946 45x+y=2610 答案：x=58 y=12 (85) 93x+12y=9117 28x-y=2492 答案：x=89 y=70 (86) 66x-71y=-1673 99x-y=7821 答案：x=79 y=97 (87) 43x-52y=-1742 76x+y=1976 答案：x=26 y=55 (88) 70x+35y=8295 40x+y=2920 答案：x=73 y=91 (89) 43x+82y=4757 11x+y=231 答案：x=21 y=47 (90) 12x-19y=236 95x-y=7885 答案：x=83 y=40 (91) 51x+99y=8031 71x-y=2911 答案：x=41 y=60 (92) 37x+74y=4403 69x-y=6003 答案：x=87 y=16 (93) 46x+34y=4820 71x-y=5183 答案：x=73 y=43 (94) 47x+98y=5861 55x-y=4565 答案：x=83 y=20 (95) 30x-17y=239 28x+y=1064 答案：x=38 y=53 (96) 55x-12y=4112 79x-y=7268 答案：x=92 y=79 (97) 27x-24y=-450 67x-y=3886 答案：x=58 y=84 (98) 97x+23y=8119 14x+y=966 答案：x=69 y=62 (99) 84x+53y=11275 70x+y=6790 答案：x=97 y=59 (100) 51x-97y=297 19x-y=1520 答案：x=80 y=39

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涓鍏冧竴娆℃柟绋10閬撻绛旀涓杩囩▼
绛旓細5锛涜В锛氳濡傛灉鎴戜箻鍧愬嚭绉熻溅鑳界洿鎺ュ埌杈惧伐缇庡ぇ鍘﹂偅涔堝簲鑺盭鍏冨垯 X=10+2(12-3)=28 鍥犱负:X=28涓嶇瓑浜26,鎵浠ユ垜璁″垝鎵撹溅鎬昏垂鐢ㄤ笉瓒呰繃26鍏冮挶涓嶈兘鐩存帴鍒拌揪宸ョ編澶у帵.6;瑙:璁句粬鎼箻鍑虹杞︽渶澶氳蛋浜哫鍗冪背.X-4=(16-10)/1.2 瑙ｅ緱X=9 or 瑙ｏ細璁 1988骞存垜鍥借幏寰梄鏋氬鐗岋紵X+2X+7=91 瑙ｅ緱X=28 2...

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绛旓細鈶2(x-2)-3(4x-1)=9(1-x)2x-4-12x+3=9-9x x=10 鈶11x+64-2x=100-9x 18x=36 x=2 鈶15-(8-5x)=7x+(4-3x)15-8+5x=7x+4-3x x=-3 鈶2(x-2)+2=x+1 2x-4+2=x+1 x=3 鈶4(x+2)=5(x-2)4x+8=5x-10 x=18 鈶 120-4(x+5)=25 120-4x-20=25 -4x=...

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绛旓細2(x+1)>5x 绛旀锛歺<2/33(x-2)<2x-17绛旀锛歺<-114(y-3)+7<-13-3(2y+1)绛旀锛歽<-1.110-2(x-1)<3(x-1)-25绛旀锛歺>82x-8<4x-7绛旀锛歺>-1/22(x+9)>3(1-x)绛旀锛歺>-31-7(y+2)<2(y-1)+5绛旀锛歽>16/9x-1/2(x+1)>10绛旀锛歺>211-x/4<5+(x-2)/6...

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绛旓細1.14x-7-12x+3=12x+8-1 2x-4=12x+7 -10x=11 x=-11/10 绛夌瓑銆傛瘮杈冨繖 2.:5y+1+1-y=9y+1+1-3y 4y+2=6y+2 0=2y y=0 3. 20%+锛1-20%锛夛紙320-x锛=320脳40 x=32.4.寮鎷彿:2X-4+2=X+1鍐嶇Щ椤:2X-X=1+4-2 绉婚」鐨勬椂鍊欐敞鎰忚鍙樺彿锛屽氨鏄粠绛夊彿鍙宠竟绉诲埌宸﹁竟(鎴栦粠...

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绛旓細1 . x+2=3 x=1 2. x+32=33 x=1 3 .x+6=18 x=12 4. 4+x=47 x=43 5. 19-x=8 x=11 6. 98-x=13 x=85 7.66-x=10 x=56 8.5x=10 x=2 9.3x=27 x=9 10.7x=7 x=1 11.8x=8 x=1 12.9x=9 x=1 13.10x=100 x=10 14.66x=660 x=10 15.7x=49 x=7...

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绛旓細1.浣垮鐢熺悊瑙ｅ拰鎺屾彙鍚湁瀛楁瘝绯绘暟鐨勪竴鍏冧竴娆℃柟绋嬪強鍏惰В娉; 2.鐞嗚В鍏紡鍙樺舰鐨勬剰涔夊苟鎺屾彙鍏紡鍙樺舰鐨勬柟娉; 3.鎻愰珮瀛︾敓鐨勮繍绠楀拰鎺ㄧ悊鑳藉姏.鏁欒偛閲嶇偣鍜岄毦鐐 閲嶇偣:鍚湁瀛楁瘝绯绘暟鐨涓鍏冧竴娆℃柟绋嬪拰瑙ｆ硶. 闅剧偣:瀛楁瘝绯绘暟鐨勬潯浠剁殑杩愮敤鍜屽叕寮忓彉褰.鏁欏杩囩▼璁捐 涓銆佸鍏ユ柊璇 闂:浠涔堝彨鏂圭▼?浠涔堝彨涓鍏冧竴娆℃柟绋? 绛:鍚湁鏈煡鏁扮殑绛...

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绛旓細3X+5X=48 X=6 14X-8X=12 X=2 6*5+2X=44 X=7 20X-50=50 X=5 28+6X=88 X=10 32-22X=10 X=1 4y+2=6 Y=1 x+32=76 X=44 3x+6=18 X=4 16+8x=40 X=3 2x-8=8 X=8 4x-3*9=29 X=9 8x-3x=105 X=21 x-6*5=42 ...

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绛旓細鐢层佷箼涓ゅ湴鐩歌窛162鍏噷,涓鍒楁參杞︿粠鐢茬珯寮鍑,姣忓皬鏃惰蛋48,涓鍒楀揩杞︿粠涔欑珯寮鍑,姣忓皬鏃惰蛋60鍏噷,璇曢棶锛氳嫢涓よ溅鐩稿悜鑰岃,鎱㈣溅鍏堝紑鍑1灏忔椂,鍐嶇敤澶氬皯灏忔椂,涓よ溅鎵嶈兘鐩搁亣?锛涓鍏冧竴娆℃柟绋瑙ｏ級璁惧啀鐢▁灏忔椂涓よ溅鐩搁亣 48(x+1)+60x=162 48x+48+60x=162 108x=114 x=57/53 鏁版嵁鍒壄.涓よ溅鍚屾椂鍚岃锛...

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