(x+1)/0.2-(x+3)/0.01=50(求过程)
问题描述:
(x+1)/0.2-(x+3)/0.01=50(求过程)
答
(x+1)/0.2-(x+3)/0.01=50
5(x+1)-100(x+3)=50
5x+5-100x-300=50
5x-100x=50-5+300
-95x=345
x=-69/19