题目内容
| 解方程。 | ||||
|
| (1)48-2x=12.4 2x=35.6 x=17.8 |
(2)7x-0.2x=0.68 6.8x=0.68 x=0.1 |
| (3)17×0.5-3x=2.5 8.5-3x=2.5 x=2 |
(4)(x+2.4)×6=30 x+2.4=5 x=2.6 |
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题目内容
| 解方程。 | ||||
|
| (1)48-2x=12.4 2x=35.6 x=17.8 |
(2)7x-0.2x=0.68 6.8x=0.68 x=0.1 |
| (3)17×0.5-3x=2.5 8.5-3x=2.5 x=2 |
(4)(x+2.4)×6=30 x+2.4=5 x=2.6 |