初一一元一次方程计算题多点1.不要应用题2.要一元一次方程至少30道谢谢。。

\u521d\u4e00\u6570\u5b66\u65b9\u7a0b\u8ba1\u7b97\u9898 \u8981\u6c42\uff1a 1.\u4e0d\u8981\u5e94\u7528\u9898 2.\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b 3.\u7b80\u5355\u70b9 4.\u8981\u591a

\u7532\u4e59\u52a0\u5de5\u540c\u4e00\u6279\u96f6\u4ef6,\u7532\u548c\u4e59\u6bcf\u5c0f\u65f6\u5206\u522b\u52a0\u5de560,90\u4e2a.\u95ee\u7532\u52a0\u5de520\u5c0f\u65f6\u540e\u4e59\u624d\u5f00\u59cb,\u6700\u540e\u540c\u65f6\u5b8c\u6210,\u8fd9\u6279\u96f6\u4ef6\u6709\u591a\u5c11\u4e2a?-13\u00d7\u4e09\u5206\u4e4b\u4e8c-0.34\u00d7\u4e03\u5206\u4e4b\u4e8c+\u4e09\u5206\u4e4b\u4e00\u00d7\uff08-13\uff09-\u4e03\u5206\u4e4b\u4e94*0.34
=-13\u00d72/3 -0.34\u00d72/7 -13\u00d71/3 -5/7 \u00d70.34
=-13\u00d7(2/3+1/3) -0.34\u00d7(2/7+5/7)
=-13\u00d71 -0.34\u00d71
=-13.34


\uff082\u00d73\u00d74\u00d75\uff09\u00d7\uff08\u4e8c\u5206\u4e4b\u4e00-\u4e09\u5206\u4e4b\u4e00-\u56db\u5206\u4e4b\u4e00+\u4e94\u5206\u4e4b\u4e00\uff09
=(2\u00d73\u00d74\u00d75)\u00d7(1/2-1/3 -1/4 +1/5)
=(2\u00d73\u00d74\u00d75)\u00d7(1/2)-(2\u00d73\u00d74\u00d75)\u00d7(1/3)-(2\u00d73\u00d74\u00d75)\u00d7(1/4)+(2\u00d73\u00d74\u00d75)\u00d7(1/5)
=3\u00d74\u00d75-2\u00d74\u00d75-2\u00d73\u00d75+2\u00d73\u00d74
=60-40-30+24
=14


-1.57\u00d7(+21.8)+6.28\u00d7(-24.7)-3.14\u00d739.7
=-1.57\u00d721.8 +1.57\u00d74\u00d7(-24.7) -1.57\u00d72\u00d739.7=-1.57(21.8+4\u00d724.7+2\u00d739.7)
=-1.57\u00d7200
=-314
\u2460\uff08-5\uff09+\uff08-3\uff09-\uff08-2\uff09+\uff08+7\uff09-\uff08-9\uff09
=-5-3+2+7+9
=10
\u8fd9\u4e00\u6761\u53ea\u8981\u8bb0\u4f4f\u62ec\u53f7\u524d\u9762\u662f+\u53f7\u7684\uff0c\u628a\u62ec\u53f7\u53bb\u6389\u5c31\u4e0d\u7528\u53d8\u53f7\uff1b\u62ec\u53f7\u524d\u9762\u662f\u51cf\u53f7\u7684\uff0c\u53bb\u62ec\u53f7\u5c31\u8981\u53d8\u53f7\uff08\u52a0\u53f7\u53d8\u51cf\u53f7\uff0c\u51cf\u53f7\u5c31\u53d8\u52a0\u53f7\uff09


\u2461-1/3-1/2+1/4-1/6
=-4/12-6/12+3/12-2/12
=\uff08-4-6+3-2\uff09/12
=-9/12
=-3/4
\u8fd9\u4e00\u6761\u7b80\u5355\uff0c\u628a\u5206\u6bcd\u90fd\u53d8\u6210\u4e00\u6837\u7684\u5c31\u5f62\u4e86\uff0c\u4e0d\u8fc7\u8981\u8bb0\u4f4f\uff0c\u5206\u6bcd\u6210\u4ee5\u591a\u5c11\uff0c\u5206\u5b50\u4e5f\u8981\u540c\u65f6\u6210\u4ee5\u591a\u5c11\uff015.15-[1-(20-4)]15-(1-16)=15-(-15)=15+15=30
6.-40-28-(-19)+(-24)=-40-28+19-24=-73
7.22.54+(-4.4)+(-12.54)+4.4=22.54-4.4-12.54+4.4=10
8.(2/3-1/2)-(1/3-5/6)=(4/6-3/6)-(2/6-5/6)=1/6-(-3/6)=1/6+3/6=4/6=2/3 [-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
(1)(-8)+10+2+(-1)
=-8+10+2-1
=3
(2)25+(-12)+(-17)-(-6)
=25-12-17+6
=2
(3)(-0.8)+1.2+(-0.7)+(-2.1)
=-0.8+1.2-0.7-2.1
=-1.7
(4)5.6+(-0.9)+4.4=(-8.1)
=10+(-9)
=1
(5)5+(-6)+3+9+(-4)+(-7)
=17+(-17)
=0
(6)0+(-3.17)+(-5)+(+1.17)
=[-(3.17+50]+1.17
=-(8.17-1.17)
=-7
(8)0-(-2.17)-(+1.17)-0.17
=2.17-1.17-0.17
=0.83


\u9898\u76ee\uff1a5x=10
\u8fc7\u7a0b\uff1a5x\u00f75=10\u00f75
\u7b54\u6848\uff1ax=2
\u8fd9\u5c31ok\u5566\uff01
\u56de\u7b54\u8005\uff1a 1412zero | \u4e00\u7ea7 | 2010-7-23 02:23


\u9898\u76ee\uff1a4x+10=15-x
\u8fc7\u7a0b\uff1a4x+x=15-1o
5x=5
x=5\u00f75
\u7b54\u6848\uff1ax=1
\u8fd9\u4e2a\u5e94\u8be5\u662f\u8fc7\u7a0b\u6700\u96be\u5f97\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u4e86
\u56de\u7b54\u8005\uff1a \u51e4\u821e\u4f2f\u7b26 | \u4e8c\u7ea7 | 2010-7-24 11:16


\u89e3\u4e0b\u5217\u5173\u4e8ex\u7684\u65b9\u7a0b\uff1a
1\u30012\uff08x+2\uff09+4=9
2x+4+4=9
2x=9-8
x=0.52
2\u30012(x+4)=10
2x+8=10
x=1
3\u30013(x-5)=18
3x-15=18
3x=33
x=11
4,4x+8=2(x-1)
4x+8=2x-2
2x=-10
x=-5
5\u30013(x+3)=9+x
3x+9=9+x
x=0
6\u30016(x/2+1)=12
3x+6=12
3x=6
x=2
7\u30019(x+6)=63
9x+54=63
x=1
8\u30012+x=2(x-1/2)
2+x=2x-1
x=3
9\u30018x+3(1-x)=-2
5x=-5
x=-1
10\u30017+x-2(x-1)=1
7+x-2x+2=1
x=8
\u56de\u7b54\u8005\uff1a \u91d1\u5b66\u5802\u8f85\u5bfc\u4e2d\u5fc3 | \u4e8c\u7ea7 | 2010-7-26 01:12

\u76f8\u5173\u5185\u5bb9
2009-2-15 \u6c42\u4e03\u5e74\u7ea7\u4e0a\u5b66\u671f\u7684\uff081+30\uff05\uff09x*\uff081-70\uff05\uff09=10
1.3x*0.3=10
0.39x=10
x=25.6410.......
x=25.6
\u7b54\uff1a\u6b64\u836f\u54c1\u57281999\u5e74\u6da8\u4ef7\u524d0.4(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

\u5e94\u7528\u9898

1\u3001 1-(x+1)=2.
2\u3001 2(2x-1)-1=3(2x-1)+3.
3\u30011/7(x+14)=1/4(x+20)
4.1/5(x+15)=1/2-1/3(x-7)

1. 2(x-2)-3(4x-1)=9(1-x)
2. 11x+64-2x=100-9x
3. 15-(8-5x)=7x+(4-3x)
4. 3(x-7)-2[9-4(2-x)]=22
5. 3/2[2/3(1/4x-1)-2]-x=2
6. 2(x-2)+2=x+1
7. 0.4(x-0.2)+1.5=0.7x-0.38
8. 30x-10(10-x)=100
9. 4(x+2)=5(x-2)
10. 120-4(x+5)=25
11. 15x+863-65x=54
12. 12.3(x-2)+1=x-(2x-1)
13. 11x+64-2x=100-9x
14. 14.59+x-25.31=0
15. x-48.32+78.51=80
16. 820-16x=45.5×8
17. (x-6)×7=2x
18. 3x+x=18
19. 0.8+3.2=7.2
20. 12.5-3x=6.5
21. 1.2(x-0.64)=0.54
22. x+12.5=3.5x
23. 8x-22.8=1.2
24. 1\ 50x+10=60
25. 2\ 60x-30=20
26. 3\ 3^20x+50=110
27. 4\ 2x=5x-3
28. 5\ 90=10+x
29. 6\ 90+20x=30
30. 7\ 691+3x=700

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