[2000/x-2]+50=2000/x
[40/x-2]+1=40/x
两边同乘以x(x-2)得
40x+x(x-2)=40(x-2)
40x+x²-2x=40x-80
x²-2x+80=0
(x-1)²=-81
原方程无实数解.