x-1分之x-1=x+2分之3

问题描述:

x-1分之x-1=x+2分之3

(x-1)/(x-1)=3/(x+2)---------1=3/(x+2)-----------x+2=3--------x=1

(x-1)分之(x-1)=(x+2)分之3
∴ 1(X≠1) =(x+2)分之3 X=1 不成立
(x-1)分之x-1=(x+2)分之3
通分得(x-1)分之1=(x+2)分之3
x+2=3x-3 ∴x=5/2