2-x/x-3+1/3-x=12-x/x-3-1/x-3=1两边乘x-32-x-1=x-3x=2分式方程要检验经检验，x=2是方程的解
(2-x)/(x-3)+1/(3-x)=1(2-x)/(x-3)-1/(x-3)=1(2-x-1)/(x-3)=11-x=x-32x=4x=2经检验得x=2是原方程的根.
