题目内容
解方程.
x×(1-
)=80
x+
x=60.
x×(1-
| 1 |
| 5 |
x+
| 1 |
| 4 |
(1)x×(1-
)=80,
x=80,
x÷
=80÷
,
x=100;
(2)x+
x=60,
x=60,
x÷
=60÷
,
x=48.
| 1 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
x=100;
(2)x+
| 1 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
x=48.
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