解方程 4分之3+15【5-3x】=5分之2
人气:493 ℃ 时间:2019-12-13 17:47:28
解答
3/4+15*(5-3x)=2/5
15*(5-3x)=2/5-3/4=-7/20
5-3x=-7/300
3x=5+7/300=5.023
x=1.674
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