题目内容
解方程:
2
-
x=1
.
2
| 1 |
| 3 |
| 11 |
| 12 |
| 1 |
| 2 |
2
-
x=1
,
2
-
x+
x=1
+
x,
1
+
x=2
,
1
+
x-1
=2
-1
,
x=
,
x×
=
×
,
x=
.
| 1 |
| 3 |
| 11 |
| 12 |
| 1 |
| 2 |
2
| 1 |
| 3 |
| 11 |
| 12 |
| 11 |
| 12 |
| 1 |
| 2 |
| 11 |
| 12 |
1
| 1 |
| 2 |
| 11 |
| 12 |
| 1 |
| 3 |
1
| 1 |
| 2 |
| 11 |
| 12 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 11 |
| 12 |
| 5 |
| 6 |
| 11 |
| 12 |
| 12 |
| 11 |
| 5 |
| 6 |
| 12 |
| 11 |
x=
| 10 |
| 11 |
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