(完整版)初一上册《一元一次方程》计算题.doc

文档介绍：40%
: .
一元一次方程计算题
#
40%
#
40%
(1) 7(2x-1)-3(4x-1)=4(3x+2)-1;
(2) (5y+1)+ (1-y)= (9y+1)+ (1-3y);
#
40%
#
40%
(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)
#
40%
#
40%
(9) 3(x-7)-2[9-4(2-x)]=22
(10 ) 3/2[2/3(1/4x-1)-2]-x=2
#
40%
#
40%
(11 ) 2x-=15
(12) -(1-)x=80
#
(13) x/2+3x/2=7
(14) 3x+7=32-2x
(15) 3x+5(138-x)=540
(16) 3x-7(x-1)=3-2(x+3)
(17) 18x+3x-3=18-2(2x-1)
(19) -(x/4-1)=5
(18) 3(20-y)=6y-4(y-11)
3 (20) 3[4(5y-1)-8]=6
1 (21) x 2 3 x；
4 4
#
#
(22) (x + 1) - 3(x -1)=1 - 3x;
(23) (x - 2) - 2(4x - 1)=3(1 - x).
#
#
3x 1 4x 2 ,
1
(24) 2 5
x 4
(25) 5
(x 5)
#
x 3 x 3
(26) 3 6

(27 )

4 x

#
#
4

5
(28