初一上学期一元一次方程计算题100道！！急！！ 初一100道一元一次方程计算题带答案
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1.\u5728\u24602x+3y-1;\u24611+7=15-8+1;\u24621- x=x+1 \u2463x+2y=3\u4e2d\u65b9\u7a0b\u6709( )\u4e2a. ( )
A.1 B.2 C.3 D.4
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A.\u4efb\u610f\u6709\u7406\u6570 B.0 C.1 D.0\u62161
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A.2x=6 B.(x-3)(x+2)=0 C.x2=3 D.3x-6=0
4.x\u3001y\u662f\u4e24\u4e2a\u6709\u7406\u6570,\u201cx\u4e0ey\u7684\u548c\u7684 \u7b49\u4e8e4\u201d\u7528\u5f0f\u5b50\u8868\u793a\u4e3a( )
A. B. C. D.\u4ee5\u4e0a\u90fd\u4e0d\u5bf9
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5.\u5217\u5f0f\u8868\u793a: (1)\u6bd4x\u5c0f8\u7684\u6570\uff1a__________;(2)a\u51cf\u53bbb\u7684 \u7684\u5dee;(3)a\u4e0eb\u7684\u5e73\u65b9 \u548c:_______________;(4)\u4e2a\u4f4d\u4e0a\u7684\u6570\u5b57\u662fa\u3001\u5341\u4f4d\u4e0a\u7684\u6570\u5b57\u662fb\u7684\u4e24\u4f4d\u6570:_____________.
6.\u4e0b\u5217\u5f0f\u5b50\u5404\u8868\u793a\u4ec0\u4e48\u610f\u4e49?
(1)(x+y)2:______________________________________________________;
(2)5x= y-15:___________________________________________________;
(3) :______________________________________________________.
7.\u7532\u4e59\u4e24\u8fd0\u8f93\u961f,\u7532\u961f32\u4eba,\u4e59\u961f28\u4eba,\u82e5\u4ece\u4e59\u961f\u8c03\u8d70x\u4eba\u5230\u7532\u961f,\u90a3\u4e48\u7532\u961f\u4eba\u6570\u6070\u597d\u662f\u4e59\u961f\u4eba\u6570\u76842\u500d,\u5217\u51fa\u65b9\u7a0b(32+x)=2(28-x)\u6240\u4f9d\u636e\u7684\u76f8\u7b49\u5173\u7cfb\u662f
_______________________________________________.(\u586b\u5199\u9898\u76ee\u4e2d\u7684\u539f\u8bdd)
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__________________________________________.
9.\u7532\u4e59\u4e24\u4eba\u4ece\u76f8\u8ddd40\u5343\u7c73\u7684\u4e24\u5730\u540c\u65f6\u51fa\u53d1,\u5411\u76f8\u800c\u884c,\u4e09\u5c0f\u65f6\u540e\u76f8\u9047.\u5df2\u77e5\u7532\u6bcf\u5c0f\u65f6\u6bd4\u4e59\u591a\u8d703\u5343\u7c73,\u6c42\u4e59\u7684\u901f\u5ea6,\u82e5\u8bbe\u4e59\u7684\u901f\u5ea6\u4e3ax\u5343\u7c73/\u65f6,\u5217\u51fa\u65b9\u7a0b\u4e3a3x+3(x+3)=40,\u5176\u4e2d3(x+3)\u8868\u793a___________________________________________________.
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10.\u67d0\u4e2d\u5b66\u4e00\u3001\u4e8c\u5e74\u7ea7\u51711000\u540d\u5b66\u751f,\u4e8c\u5e74\u7ea7\u5b66\u751f\u6bd4\u4e00\u5e74\u7ea7\u5c1140\u4eba,\u6c42\u8be5\u4e2d\u5b66\u4e00\u5e74\u7ea7\u4eba\u6570\u662f\u591a\u5c11?(\u8bbe\u672a\u77e5\u6570\u3001\u5217\u65b9\u7a0b\u5e76\u4f30\u8ba1\u95ee\u9898\u7684\u89e3).
11.\u968f\u968f\u4e0e\u5dde\u5dde\u7ea6\u597d1\u5c0f\u65f6\u540e\u5230\u5dde\u5dde\u5bb6\u53bb\u73a9,\u4ed6\u9a91\u8f66\u4ece\u5bb6\u51fa\u53d1\u534a\u5c0f\u65f6\u540e\u53d1\u73b0\u65f6\u95f4\u4e0d\u591f\u4e86\u4fbf\u5c06\u901f\u5ea6\u63d0\u9ad8\u5230\u539f\u6765\u76842\u500d,\u534a\u5c0f\u65f6\u540e\u51c6\u65f6\u5230\u8fbe\u5dde\u5dde\u7684\u5bb6.\u5df2\u77e5\u4ed6\u4eec\u5bb6\u76f8\u8ddd30\u5343\u7c73,\u6c42\u968f\u968f\u539f\u6765\u7684\u9a91\u8f66\u901f\u5ea6.(\u753b\u51fa\u8def\u7a0b\u793a\u610f\u56fe,\u8bbe\u672a\u77e5\u6570\u5217\u65b9\u7a0b\u5e76\u4f30\u8ba1\u95ee\u9898\u7684\u89e3)
12.\u7532\u4e59\u4e24\u4e2a\u6570,\u7532\u6570\u6bd4\u4e59\u6570\u76842\u500d\u591a1,\u4e59\u6570\u6bd4\u7532\u6570\u5c0f4,\u6c42\u8fd9\u4e24\u4e2a\u6570(\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u8bbe\u5143\u3001\u5217\u65b9\u7a0b\u5e76\u4f30\u8ba1\u89e3)
13.\u65b9\u7a0b17+15x=245, , 2(x+1.5x)=24\u90fd\u53ea\u542b\u6709\u4e00\u4e2a\u672a\u77e5\u6570,\u672a\u77e5\u6570\u7684\u6307\u6570\u90fd\u662f1,\u5b83\u4eec\u662f\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b,\u65b9\u7a0bx2+3=4,x2+2x+1=0,x+y=5\u662f\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u5417?\u82e5\u4e0d\u662f,\u5b83\u4eec\u5404\u662f\u51e0\u5143\u51e0\u6b21\u65b9\u7a0b?
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1.B 2.C 3.D 4.C
5.(1)x-8;(2)a- b;(3)a2+b2;(4)10b+a
6.(1)x,y\u7684\u548c\u7684\u5e73\u65b9;
(2)x\u76845 \u500d\u6bd4y\u7684\u4e00\u534a\u5c0f15;
(3)x\u4e0e\u5b83\u7684 \u7684\u548c\u7684\u4e00\u534a\u7b49\u4e8e24
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8.\u8fd9\u6839\u94c1\u4e1d\u7684\u957f
9.\u75323\u5c0f\u65f6\u6240\u8d70\u7684\u8def\u7a0b
10.\u8bbe\u8be5\u4e2d\u5b66\u4e00\u5e74\u7ea7\u4eba\u6570\u4e3ax,\u5217\u65b9\u7a0b,
\u5f97x+(x-40)=1000,x=520
11.\u8bbe\u968f\u968f\u539f\u6765\u7684\u9a91\u8f66\u901f\u5ea6\u4e3ax\u5343\u7c73/\u65f6,
\u5217\u65b9\u7a0b,\u5f97 ,x=20.
12.\u8bbe\u7532\u6570\u4e3ax,\u5219\u4e59\u6570\u4e3ax-4,\u5217\u65b9\u7a0b\u5f97x=2(x-4)+1,x=7;
\u8bbe\u4e59\u6570\u4e3ax,\u5219\u7532\u6570\u4e3ax+4,\u5217\u65b9\u7a0b\u5f97x+4=2x+1,x=3
13.x2+3=4\u548cx2+2x+1=0\u662f\u4e00\u5143\u4e8c\u6b21\u65b9\u7a0b;x+y=5\u662f\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b\u3002
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 X=72
x+5=7 X=2
2x+3=10 X=7/2
12x-9x=9 X=3
6x+18=48 X=5
56x-50x=30 X=5
5x=15 X=3
78-5x=28 X=10
32y-29=3 Y=1
5x+5=15 X=2
89x-9=80 X=1
100-20x=20 X=4
55x-25x=60 X=2
76y-75=1 Y=1
23y-23=23 Y=2
4x-20=0 X=5 80y+20=100 Y=1
53x-90=16 X=2
2x+9x=11 X=1
12y-12=24 Y=3
80+5x=100 X=4
7x-8=6 X=2
65x+35=100 X=1
19y+y=40 Y=2
25-5x=15 X=8
79y+y=80 Y=1
42x+28x=140 X=2
3x-1=8 X=3
90y-90=90 Y=2
80y-90=70 Y=2
78y+2y=160 Y=2
88-x=80 X=8
9-4x=1 X=2
20x=40 X=2
15y-35=100 X=9
51y-y=100 Y=2
85y+1=-86 Y=1
45x-50=40 X=2
10x+6=26 x=2
24:8x=1 x=3
8x+23=39 x=2 24:8x=1 x=3
8x+23=39 x=2
4x+9=21 x=3
6:2x=3 x=1
5x-3=2 x=1
6\u00d7+8=68 \u00d7=10
2x=3+5 x=4
3x=x+1 x=1/2
x=2x-2 x=2
x=32+3 x=35
2x=1+4 x=5/2
2x=x+1 x=1
2x=5*6 x=15
10x=1 x=1/10
5x=10 x=2
6x=7 x=7/6
10x=10 x=1
10=x+1 x=9
10=2x+2 x=4
10=3x+1 x=3
13=4x+1 x=3
11=2x+1 x=5
16=3x+1 x=5
68=5x+23 x=9
21=6x-123 x=28
11=7x+2 x=9/7
14=12x-34 x=4
21=4x+1 x=5
21=2x+1 x=10
34=3x+1 x=11
48=5x+23 x=5
72=7x+2 x=10
2=12x-34 x=3
28=9x+1 x=3
29=9x+2 x=3
31=5x+1 x=6
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)x/3 -5 = (5-x)/2
2(x+1) /3=5(x+1) /6 -1
(1/5)x +1 =(2x+1)/4
(5-2)/2 - (4+x)/3 =1
x/3 -1 = (1-x)/2
(x-2)/2 - (3x-2)/4 =-1
(5y+1)+(1-y)=(9y+1)+(1-3y)
7(2x-1)-3(4x-1)=4(3x+2)-1
10x=11 x=-1.1
2x+5=45
2(x+8)=48
88-25x=45+6x
566+48x=56-x
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3x^2+27=0
3x^2-4x-4=0.
（2y+1)^2+3(2y+1)+2=0.
（x－2）^2－3＝0
2x^2－5x＋1＝0
x(8＋x)＝16
（2x－3）^2－2（2x－3）－3＝0
x^2－17x＋66＝0
（x+1）^2－2（x－1）^2=6x－5 4
（x+2）^2=9(2x－1)^2
2[(x+3)-2(x+Ⅰ)]-5=O
7(2x-Ⅰ)-3(4x-Ⅰ)+2(3x-2)+Ⅰ=O
3(x-1)-12=2(2x+3)+4(x+3)
0.8-0.1=0.5x-0.7
6X(9一x)=4(3x一7)
我也不会，也是来求解
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绛旓細(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)-2[9-4(2-x)]=22 3/2[2/3(1/4x-1)-2]-x=2 2(x-2)+2=x+1 5x^2+3x+1=0 7x^2+x+12=0 2x^2+4x+4=0 8x^2+3x+1=0 5x^2+3x+2=0 45x^2+3x+100=0 89x^2+335x+1=0 ...
绛旓細10銆佺敤涓鎹96绫崇殑甯冧负鍏勾绾ф煇涓彮鐨勫鐢熷仛琛ｆ湇,鍋15濂楃敤浜33绫冲竷,鐓ц繖鏍璁＄畻,杩欎簺甯冧负鍝釜鐝仛鏍℃湇鏈鍚堥?锛1鐝42浜,2鐝43浜,3鐝45浜猴級璁96绫充负a涓汉鍋 鏍规嵁棰樻剰 96锛歛=33锛15 33a=96脳15 a鈮43.6 鎵浠ヤ负2鐝仛鍚堥,鏈夊瘜浣,浣嗘槸瀵屼綑涓嶅,涓3鐝仛灏变笉澶熶簡 11銆佷竴涓垎鏁,濡傛灉鍒嗗瓙...
绛旓細鎵浠锛1鎴60锛60鑸嶅幓锛夋墍浠ュ搴︿负1m 11.璁鹃噾鑹茬焊杈圭殑瀹芥槸xcm,鍙垪鏂圭▼ (90+2x)(40+2x)=40*90/72 3600+80x+180x+4x2=5000 4x2+260x-1400=0 瑙ｅ緱x1=5 x2=-70锛堜笉绗﹀悎棰樻剰锛岃垗鍘伙級鎵浠ワ紝绛旓細閲戣壊绾歌竟鐨勫鏄5cm銆12.璁炬瘡鐩掕尪鍙惰繘浠穢鍏冦傜敱棰樻剰寰楋細锛1+20%锛*x*50+(x锛5)(...
绛旓細7(2x-1)-3(4x-1)=4(3x+2)-1;(5y+1)+ (1-y)= (9y+1)+ (1-3y);20%+(1-20%)(320-x)=320脳40 2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x)x/3 -5 = (5-x)/2 2(x+1) /3=5(x+1) /6 -1 (1/5)x +1 =(2x+1)/4 (5-2)/2 - (4+x)/3 =1 ...
绛旓細1銆佽姣忓彴B鍨嬫満鍣ㄦ瘡澶╃敓浜涓骇鍝侊紝鍒欐瘡鍙癆鍨嬫満鍣ㄦ瘡澶╃敓浜+1涓骇鍝 鐢遍锛屽垪鏂圭▼寰 [5脳(x+1)-4]/8锛(7x-1)/11 鍗筹紝55x+11=56x-8 瑙ｅ緱锛寈锛19 姣忕瑁(7脳19-1)梅11锛12涓 鎵浠ワ紝姣忕瑁12涓骇鍝 2銆佷竴鐩掔殑鏈堥ゼ闇瑕侀潰绮 锛0.05脳2锛0.02脳4 锛0.18kg 涓鍏卞彲浠ョ敓浜ф湀楗硷細...
绛旓細6銆佽涓夌鑽垎鍒负2x銆3x銆7x鍏嬶紝寰鏂圭▼锛2x+3x+7x=1440 12x=1440 x=120 鎵浠ラ渶瑕佺敳绉嶈嵂2*120=240鍏嬶紝涔欑鑽3*120=360鍏嬶紝涓欑鑽120*7=840鍏.7銆佽鍏ㄧ彮浜烘暟涓簒浜猴紝閭ｄ箞鐢风敓浜烘暟鏄(5/8)x-5浜猴紝寰楁柟绋 锛歔(5/8)x-5]+[(5/8)x-5]-2=x (5/4)x-12=x (1/4)x=12 x=...
绛旓細绛夐噺鍏崇郴锛氬皬鍨嬫苯杞﹀仠杞﹁垂鐢+涓瀷姹借溅鍋滆溅璐圭敤=鎬诲仠杞﹁垂 瑙ｏ細璁惧皬鍨嬫苯杞︽湁x杈嗭紝涓瀷姹借溅鏈夛紙50-x锛夎締 4x+6锛50-x锛=230 4x+300-6x=230 -2x=-70 x=35 50-35=15鈥︹︿腑鍨嬫苯杞 绛旓細灏忓瀷姹借溅鏈35杈嗭紝涓瀷姹借溅鏈15杈嗐
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 ...
绛旓細(15-5)x=1/2*5 10x=5/2 x=5/2*1/10 x=1/4 60*1/4=15(鍒)锛4锛夎В锛氳浠栫殑閫熷害鏄15鍗冪背/鏃舵椂锛寈鏃跺埌杈俱15x=9*(x+1/4+1/4)15x=9x+4.5 6x=4.5 x=3/4 15*3/4=11.25(km)11.25/(3/4-1/6)=11.25/(7/12)=19鍙2/7 绗2棰樻垜涔熶笉浼氾紝璇烽珮鎵嬫潵瑙ｇ瓟銆傝繕鏈夌...
绛旓細涓銆佸埄鐢ㄧЩ椤瑰強鍚堝苟鍚岀被椤规眰涓嬪垪鏂圭▼鐨勮В銆傦紙鍐欒繃绋嬶紝鍐欒繃绋嬶紒锛侊紒锛夛紙1锛3x+2=-5 3x=-5-2 3x=-7 x=-7/3 锛2锛2x-5=-7x+13 2x+7x=5+13 9x=18 x=2 锛3锛1/3x=1/4x-1 锛堜笁鍒嗕箣涓x=鍥涘垎涔嬩竴x-1锛1/3x-1/4x=-1 1/12x=-1 x=-12 锛4锛-6x-1=4 -6x=4+1 ...
