题目内容
解方程:
|
|
(1)
x=
,
x÷
=
÷
,
x=0.7;
(2)
x÷
=12,
x÷
×
=12×
,
x÷
=3÷
,
x=4.5.
| 8 |
| 21 |
| 4 |
| 15 |
| 8 |
| 21 |
| 8 |
| 21 |
| 4 |
| 15 |
| 8 |
| 21 |
x=0.7;
(2)
| 2 |
| 3 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
x=4.5.
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