题目内容
| 解方程. x+
| x-
| 0.2x=30. |
(1)x+
| 1 |
| 8 |
| 3 |
| 4 |
x+
| 1 |
| 8 |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
x=
| 5 |
| 8 |
(2)x-
| 2 |
| 3 |
| 1 |
| 6 |
x-
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 6 |
| 2 |
| 3 |
x=
| 5 |
| 6 |
(3)0.2x=30,
0.2x÷0.2=30÷0.2,
x=150.
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题目内容
| 解方程. x+
| x-
| 0.2x=30. |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
| 5 |
| 8 |
| 2 |
| 3 |
| 1 |
| 6 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 6 |
| 2 |
| 3 |
| 5 |
| 6 |