问题:
解方程
(1)
7
x-2
=
5
x
(2)
1
x-3
=2+
x
3-x
.
解方程
(1)
=
(2)
=2+
.
(1)
7 |
x-2 |
5 |
x |
(2)
1 |
x-3 |
x |
3-x |
参考答案: