题目内容
解方程或比例.
| 5×0.7+0.4x=9.1 |
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(1)5×0.7+0.4x=9.1,
3.5+0.4x=9.1,
3.5+0.4x-3.5=9.1-3.5,
0.4x=5.6,
0.4x÷0.4=5.6÷0.4,
x=14;
(2)
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题目内容
| 5×0.7+0.4x=9.1 |
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