1/(x-2)=(1-x)/(2-x)-31/(x-2)=(x-1)/(x-2)-3两边乘x-21=x-1-3(x-2)1=x-1-3x+6x=2经检验,x=2,分母x-2=0是增根,舍去所以方程无解
1/(x-2)=(1-x)/(2-x)-31=x-1-3(x-2)1=x-1-3x+62x=4x=2经检验,x=2是增根,原方程无解
1/(x-2)=(1-x)/(2-x)-31/(x-2)=(x-1)/(x-2)-31=x-1-3(x-2)2x=4x=2