(0.2x-0.2)/0.02-(x+1)/0.5=3
50*(0.2x-0.2)-2*(x+1)=3
10x-10-2x-2=3
8x=3+10+2=15
x=1.875
方程0.02分之0.2x-0.2-0.5分之x+1=3的解
方程0.02分之0.2x-0.2-0.5分之x+1=3的解
数学人气：313 ℃时间：2020-04-08 14:18:26
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