题目内容
5.5-x=2
| x:0.75=
| 2x+30%x=9.2. |
(1)5.5-x=2
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5.5-x+x=2
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2
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2
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| 3 |
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x=2.75;
(2)x:0.75=
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x÷0.75=
| 5 |
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x÷0.75×0.75=
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x=0.625;
(3)2x+30%x=9.2,
2.3x=9.2,
2.3x÷2.3=9.2÷2.3,
x=4.
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题目内容
5.5-x=2
| x:0.75=
| 2x+30%x=9.2. |
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