题目内容
若
=
，则
=______．
| 5 |
| x |
| 3 |
| y |
| x-y |
| x+y |
设
=
=
，
则x=5k，y=3k，
所以
=
=
=
．
故答案为：
．
| 5 |
| x |
| 3 |
| y |
| 1 |
| k |
则x=5k，y=3k，
所以
| x-y |
| x+y |
| 5k-3k |
| 5k+3k |
| 2k |
| 8k |
| 1 |
| 4 |
故答案为：
| 1 |
| 4 |
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相关题目
题目内容
| 5 |
| x |
| 3 |
| y |
| x-y |
| x+y |
| 5 |
| x |
| 3 |
| y |
| 1 |
| k |
| x-y |
| x+y |
| 5k-3k |
| 5k+3k |
| 2k |
| 8k |
| 1 |
| 4 |
| 1 |
| 4 |