初一解一元一次方程计算题专项训练.docx

文档介绍：次方程的练****题
(1) 2x+5=5x-7(2)4-3(2-x)=5x
(3) 3 (x-2) =2-5(x-2)(4)2(x+3) — 5(1 — x)=3(x — 1) (5)3(x 1) -2(x 2) =2x 3(6)3(x-2) 1 =x -(2x-1)
(7)x=3x-1(8)=+1
-1 x -1 x 8
⑼丁丁 =1(10)^—
1 八八
x
2
4x 2 -1
3 2 3
…、 4 3
(11)3 - = —x -12(12) —x- =
5 4
1 1 1 3x 7
(13)x -1 = — x x x(14) =
2 4 8 2
(17)打 12 =2一5^
(18)3 -6x =
-7x1
2
(19)
3 - 3m
(21)x
2 4
1 -x x 2
=1 (20) y -
-1 (22)
3-x
(23)1 (x-3)=2- 1 (x-3) (24) 2 2
(25)

= 3(26) y -
(27)
x 2 2x -3 /”、
——— =1 (28)
(29)
3j 24
y -1
y 2
2--—

2-18y _ y 2
2x(30)2[x-2(x-1)]=3(x-1)
1 3 1 x 4 3 x
(31)-(1 --x) —(2 --) -2(32) (--1)-3 -2x = 3
4 2 3 4 3 _2 2
.一 …、 ‘’5 1、 2
(33) 2 x -1 +3 = 9(34)7x —12 -x -- |=8—— (6x —9)
<3 2) 3
1 1 1
(35) x [x (x -6)] (x -6) 3
(36) 3 2 - 2[3 4
1 x+1 +2 -21
2