(1-x)/(x-2)+2=-1/(x-2)
两边乘x-2
1-x+2x-4=-1
x=2
经检验,x=2时坟墓x-2=0
是增根,舍去
方程无解
1/(x-3)-1=1/(x+3)(x-3)
两边乘(x+3)(x-3)
x+3-x²+9=1
x²-x-11=0
x=(1±3√5)/2