题目内容
解方程
x-
| x:
|
(1)x-
x=
,
x=
,
x×
=
×
,
x=3;
(2)x:
=42×
,
x=42×
×
,
x=
,
| 3 |
| 5 |
| 6 |
| 5 |
| 2 |
| 5 |
| 6 |
| 5 |
| 2 |
| 5 |
| 5 |
| 2 |
| 6 |
| 5 |
| 5 |
| 2 |
x=3;
(2)x:
| 5 |
| 7 |
| 5 |
| 7 |
x=42×
| 5 |
| 7 |
| 5 |
| 7 |
x=
| 150 |
| 7 |
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