题目内容
若
=
,则
=______;若
=
,则
=______.
| a |
| b |
| 2 |
| 3 |
| a-b |
| b |
| 3x+y |
| x-2y |
| 1 |
| 4 |
| x |
| y |
∵
=
,
∴
=
=-
;
∵
=
,
∴4(3x+y)=x-2y,
∴11x=-6y,
∴
=-
.
故答案为:-
,-
.
| a |
| b |
| 2 |
| 3 |
∴
| a-b |
| b |
| 2-3 |
| 3 |
| 1 |
| 3 |
∵
| 3x+y |
| x-2y |
| 1 |
| 4 |
∴4(3x+y)=x-2y,
∴11x=-6y,
∴
| x |
| y |
| 6 |
| 11 |
故答案为:-
| 1 |
| 3 |
| 6 |
| 11 |
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