题目内容
已知:
=
,则
=______.
| 3a |
| 2b |
| 1 |
| 3 |
| a+b |
| b |
∵
=
,
∴9a=2b,a=
b,
∴
=
=
.
| 3a |
| 2b |
| 1 |
| 3 |
∴9a=2b,a=
| 2 |
| 9 |
∴
| a+b |
| b |
| ||
| b |
| 11 |
| 9 |
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题目内容
| 3a |
| 2b |
| 1 |
| 3 |
| a+b |
| b |
| 3a |
| 2b |
| 1 |
| 3 |
| 2 |
| 9 |
| a+b |
| b |
| ||
| b |
| 11 |
| 9 |