(x-1)/2=5-(x-1)/3怎么做
问题描述:
(x-1)/2=5-(x-1)/3怎么做
答
(x-1)/2=5-(x-1)/3
(x-1)/2+(x-1)/3=5
3(x-1)/6+2(x-1)/6=5
5(x-1)/6=5
5(x-1)=30
x-1=6
x=7