(6x+20)/(x+20)=2 怎么解
问题描述:
(6x+20)/(x+20)=2 怎么解
答
6x+20=2x+40
4x=20
x=5
(6x+20)/(x+20)=2 怎么解
6x+20=2x+40
4x=20
x=5