题目内容
x=______时,式子
与
互为相反数.
| x-1 |
| 2 |
| x-2 |
| 3 |
∵式子
与
互为相反数,
∴
+
=0,
解得x=
.
故答案为:
.
| x-1 |
| 2 |
| x-2 |
| 3 |
∴
| x-1 |
| 2 |
| x-2 |
| 3 |
解得x=
| 7 |
| 5 |
故答案为:
| 7 |
| 5 |
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题目内容
| x-1 |
| 2 |
| x-2 |
| 3 |
| x-1 |
| 2 |
| x-2 |
| 3 |
| x-1 |
| 2 |
| x-2 |
| 3 |
| 7 |
| 5 |
| 7 |
| 5 |