初一上册《一元一次方程》计算题.doc

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一元一次方程计算题
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(1) 7(2x-1)-3(4x-1)=4(3x+2)-1;
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一元一次方程计算题
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(1) 7(2x-1)-3(4x-1)=4(3x+2)-1;
(2) (5y+1)+ (1-y)= (9y+1)+ (1-3y);
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(3) [ (1/4x-3)-4 ]=x+2;
(4) 20%+(1-20%)(320-x)=320 X
(5) 2(x-2)+2=x+1
(6) 2(x-2)-3(4x-1)=9(1-x)
(7) 11x+64-2x=100-9x
(8) 15-(8-5x)=7x+(4-3x)
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(9) 3(x-7)-2[9-4(2-x)]=22
(10 ) 3/2[2/3(1/4x-1)-2]-x=2
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(11 ) 2x-=15
(12) -(1-)x=80
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(13) x/2+3x/2=7
(14) 3x+7=32-2x
(15) 3x+5(138-x)=540
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3x-7(x-1)=3-2(x+3)
18x+3x-3=18-2(2x-1)
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5
(19) -(x/4-1)=5
3(20-y)=6y-4(y-11)
(20) 3[4(5y-1)-8]=6
(22) (x + 1) - 3(x -1)=1 - 3x;
(23) (x - 2) - 2(4x - 1)=3(1 - x).
3x -1
4x 2 ,
x 4
x 2
- 1
(x _5厂：
(24) 2
5
(25) 5
2 ；
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5
x -3
(26) 3
x 3 ,
x -4
6
一 X

4 -x

(28)5 [5(一4)+5一10]+°^ = 一2 ；
4x