解方程 36-X=20 6*X=0.3 0.8(X-2)=6.4
人气:486 ℃ 时间:2020-02-06 05:39:04
解答
36-X=20
X=36-20
X=16
6*X=0.3
X=0.3÷6
X=0.05
0.8(X-2)=6.4
X-2=6.4÷0.8
X-2=8
X=8+2
X=10
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