题目内容
解方程或比例
|
|
(1)
X-
X=
,
X=
,
X÷
=
÷
,
x=
;
(2)
=
,
22.5x=94.5×30,
22.5x=2835,
22.5x÷22.5=2835÷22.5,
x=126.
| 8 |
| 9 |
| 1 |
| 3 |
| 35 |
| 36 |
| 5 |
| 9 |
| 35 |
| 36 |
| 5 |
| 9 |
| 5 |
| 9 |
| 35 |
| 36 |
| 5 |
| 9 |
x=
| 7 |
| 4 |
(2)
| 30 |
| 22.5 |
| X |
| 94.5 |
22.5x=94.5×30,
22.5x=2835,
22.5x÷22.5=2835÷22.5,
x=126.
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