题目内容
若
=
,则
=______;若
=
,则
=______.
| x-y |
| y |
| 2 |
| 5 |
| x |
| y |
| a |
| b |
| 2 |
| 3 |
| a+b |
| b |
∵
=
,
∴5(x-y)=2y,
5x-5y=2y,
5x=7y,
=
;
∵
=
,
∴a=
b,
∴
=
=
.
故答案为:
,
.
| x-y |
| y |
| 2 |
| 5 |
∴5(x-y)=2y,
5x-5y=2y,
5x=7y,
| x |
| y |
| 7 |
| 5 |
∵
| a |
| b |
| 2 |
| 3 |
∴a=
| 2 |
| 3 |
∴
| a+b |
| b |
| ||
| b |
| 5 |
| 3 |
故答案为:
| 7 |
| 5 |
| 5 |
| 3 |
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