1/(x-2)=(x-1)/(x-2)-31=x-1-3(x-2)1=x-1-3x+62x=4x=2由于x=2时,分母x-2=0,故X=2是增根.所以,原方程无解.
1/(x-2)=(x-1)/(x-2)-3x不等于21=x-1-3(x-2)1=-2x+52x=4x=2此题无解
x-1/2=x-x/2-4x-1/2=x/2-4x/2=-7/2x=-7
