题目内容
解方程:
(1)
-
=1+
(2)x-2[x+
(x-1)]=
(x-1).
(1)
| x |
| 2 |
| x-2 |
| 6 |
| 2x-1 |
| 3 |
(2)x-2[x+
| 1 |
| 6 |
| 2 |
| 3 |
(1)去分母得:3x-x+2=6+4x-2,
移项合并得:-2x=2,
解得:x=-1;
(2)去括号得:x-2x-
x+
=
x-
,
移项合并得:-2x=-1,
解得:x=
.
移项合并得:-2x=2,
解得:x=-1;
(2)去括号得:x-2x-
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
移项合并得:-2x=-1,
解得:x=
| 1 |
| 2 |
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