Question

分式方程大家帮忙做一道分式方程,谢谢了.

Answer 1

两边乘以(x+2)

a+b=4x/(x-2)

(x-2)(a+b)=4x

(a+b)x-2(a+b)=4x

(a+b-4)x=2(a+b)

x=2(a+b)/(a+b-4)