初一 解一元一次方程计算题专项训练
anquan-圣诞节几号
解一元一次方程的练习题
(1)2x+5=5x-7
(2) 4-3(2-x)=5x
(3)3(x-2)=2-5(x-2)
(5)
3(x1)2(x2)2x3
(7)
x
2
=3x-1
(8)
(9)
1
3
x1
2
1
(4) 2(x+3)-5(1-x)=3(x-1)
(6)
3(x2)1x(2x1)
2x-1
3
=
x+2
2
+1
(10)
x8
3
x
(11)
31.2x
431
x12
(12 )
x0.4x0.3
5
(13)
x1
1
2
x
14
x
1
8
x
(15)
x
2
x1
5
1
(17)
3y12
2
5y7
43
(19)
1m
2
33m
4
1
42
(14)
3x1
2
4x2
5
1
(16)
1
2
x12x
1
3
(18)
5
3
6x
7
2
x1
(20)
y
y1y2
2
2
5
(21)
x
1xx23xx8
1
(22)
1
36
(23)
1
2
(x-3)=2-
1
2
(x-3)
(25)
x1x3
0.2
0.01
3
(26)
(27)
x2
4
2x3
6
1
(29)
3
1
2
4
x
3
2
3
2x
23
(24)
x2x1
0.2
0.5
3
y
218y
6
y
9
2
28)
x1x24x
3
6
2
(30)
112
2
[x
2
(x1)]
3
(x1)
(
(31)
4
3x
131x
(1x)(2)2
(32)
(1)3
2x3
4234
(33)
2x139
(35)
x
1
2
[x
1
3
(x6
)]
1
6
(x6)3
3
22
(34)
7x12
<
br>5
3
x
1
2
2
8
3
(6x9)
(36)
3
2
2
3
1
4
x
1
12
2
2
2
3
x