题目内容
解方程.
|
|
(1)
÷
x=12,
÷
x×
x=12×
x,
3x÷3=
÷3,
x=
;
(2)
x-
x=40%×
,
x=
,
x×9=
×9,
x=
.
| 2 |
| 3 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
3x÷3=
| 2 |
| 3 |
x=
| 2 |
| 9 |
(2)
| 4 |
| 9 |
| 1 |
| 3 |
| 5 |
| 8 |
| 1 |
| 9 |
| 1 |
| 4 |
| 1 |
| 9 |
| 1 |
| 4 |
x=
| 9 |
| 4 |
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