题目内容
求未知数x:①
X-1=0.2;②X:
=21:
.
| 1 |
| 8 |
| 5 |
| 14 |
| 5 |
| 8 |
①
X-1=0.2
x=1.2
x=9.6;
②X:
=21:
x=21×
x=
x=12.
| 1 |
| 8 |
| 1 |
| 8 |
x=9.6;
②X:
| 5 |
| 14 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 14 |
| 5 |
| 8 |
| 15 |
| 2 |
x=12.
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