题目内容
解方程或比例.
|
|
(1)
:
=
:x,
x=
×
,
x×3=
×3,
x=
,
(2)
x+
x=
,
x=
,
x×
=
×
,
x=
.
| 1 |
| 3 |
| 1 |
| 20 |
| 5 |
| 9 |
| 1 |
| 3 |
| 1 |
| 20 |
| 5 |
| 9 |
| 1 |
| 3 |
| 1 |
| 36 |
x=
| 1 |
| 12 |
(2)
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 6 |
| 17 |
| 12 |
| 1 |
| 6 |
| 17 |
| 12 |
| 12 |
| 17 |
| 1 |
| 6 |
| 12 |
| 17 |
x=
| 2 |
| 17 |
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