(x-1)/(x+3)-1=(x-2)/(x^2+2x-3)解方程
问题描述：
(x-1)/(x+3)-1=(x-2)/(x^2+2x-3)解方程
答
(x-1)/(x+3)-1=(x-2)/(x+3)(x-1)
两边乘(x+3)(x-1)
x²-2x+1-x²-2x+3=x-2
-4x+4=x-2
5x=6
x=6/5
经检验,x=6/5是方程的解