题目内容
解方程:
(1)
-1=
;
(2)
=
-1.
(1)
| 2x-1 |
| 3 |
| 5x-3 |
| 4 |
(2)
| 3x-1 |
| 2 |
| 4x+2 |
| 5 |
(1)
-1=
4(2x-1)-12=3(5x-3)
8x-4-12=15x-9
-7x=7
x=-1;
(2)
=
-1
5(3x-1)=2(4x+2)-10
15x-5=8x+4-10
7x=-1
x=-
.
| 2x-1 |
| 3 |
| 5x-3 |
| 4 |
4(2x-1)-12=3(5x-3)
8x-4-12=15x-9
-7x=7
x=-1;
(2)
| 3x-1 |
| 2 |
| 4x+2 |
| 5 |
5(3x-1)=2(4x+2)-10
15x-5=8x+4-10
7x=-1
x=-
| 1 |
| 7 |
练习册系列答案
相关题目