①x²-1分之3x-1+1-x分之x=2 ②x²-4分之2x+2-x分之1=3分之1

(3x-1)/(x²-1)+x/(1-x)=2可以变形为(3x-1)/(x²-1)-x/(x-1)=2两边同乘以x²-1得：3x-1-x(x+1)=2(x²-1)3x-1-x²-x=2x²-2-3x²+2x+1=03x²-2x-1=0 (3x+1)(x-1)=0所以x1=-1/3,x2=1...