0.6乘以（3.8-X）=1.5
3.8-X=1.5/0.6
3.8-X=2.5
X=3.8-2.5
X=1.3
求未知數(shù)的值.0.6乘以（3.8-X）=1.5
求未知數(shù)的值.0.6乘以（3.8-X）=1.5
數(shù)學(xué)人氣：918 ℃時間：2020-05-18 11:57:11
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