题目内容
解方程.
X÷
|
X-
|
(1)X÷
=
,
X÷
×
=
×
,
X=
;
(2)X-
X=3,
X=3,
X×
=3×
,
X=8.
| 3 |
| 4 |
| 4 |
| 5 |
X÷
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 5 |
| 3 |
| 4 |
X=
| 3 |
| 5 |
(2)X-
| 5 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 8 |
| 3 |
| 8 |
| 3 |
X=8.
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