是x/(x+1)=2x/(3x+3)+1吗？x/(x+1)=2x/(3x+3)+1当x不等于-1时，两边同时乘x+1,x=2/3x+x+13x=2x+3x+3x=-3/2
X/(X+1)=2X/(3X+3)+1X/(X+1)=(2X+3X+3)/(3X+3)X(3X+3)=(X+1)(5X+3)3X^2+3X=5X^2+8X+32X^2+5X+3=0(2X+3)(X+1)=0X1=-3/2 X2=-1
