题目内容
列方程式解比例
|
|
(1)
:
=x:
,
x=
×
,
x÷
=
÷
,
x=1
;
(2)
×
-2x=
,
-2x+2x=
+2x,
-
=2x-
,
÷2=2x÷2,
x=
.
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 3 |
| 8 |
| 1 |
| 3 |
x=1
| 1 |
| 8 |
(2)
| 6 |
| 7 |
| 2 |
| 3 |
| 3 |
| 7 |
| 4 |
| 7 |
| 3 |
| 7 |
| 4 |
| 7 |
| 3 |
| 7 |
| 3 |
| 7 |
| 1 |
| 7 |
x=
| 1 |
| 14 |
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