题目内容
解下列方程.
x=
x÷
=8.
| 7 |
| 8 |
| 21 |
| 40 |
| 1 |
| 3 |
| 4 |
| 5 |
(1)
x=
,
x×
=
×
,
x=
;
(2)
x÷
=8,
x÷
×
=10×
,
x=8,
x×3=8×3,
x=24.
| 7 |
| 8 |
| 21 |
| 40 |
| 7 |
| 8 |
| 8 |
| 7 |
| 21 |
| 40 |
| 8 |
| 7 |
x=
| 3 |
| 5 |
(2)
| 1 |
| 3 |
| 4 |
| 5 |
| 1 |
| 3 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
x=24.
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