题目内容
使算式(
-
)÷
-(□-
)=
成立,□=______.
| 7 |
| 12 |
| 1 |
| 4 |
| 5 |
| 12 |
| 2 |
| 3 |
| 1 |
| 5 |
由分析可知,上面的算式可变为如下的方程:
(
-
)÷
-(x-
)=
,
÷
-(x-
)=
,
-(x-
)=
,
x-
=
,
x=1
,
因为x=1
,所以□=1
.
故答案为:1
.
(
| 7 |
| 12 |
| 1 |
| 4 |
| 5 |
| 12 |
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 3 |
| 5 |
| 12 |
| 2 |
| 3 |
| 1 |
| 5 |
| 4 |
| 5 |
| 2 |
| 3 |
| 1 |
| 5 |
x-
| 2 |
| 3 |
| 3 |
| 5 |
x=1
| 4 |
| 15 |
因为x=1
| 4 |
| 15 |
| 4 |
| 15 |
故答案为:1
| 4 |
| 15 |
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