打错了,呵呵5x-96/x-19+x-8/x-9=4x-19/x-6+2x-21/x-8
32/7
能有过程么?
5x-96/x-19+x-8/x-9=4x-19/x-6+2x-21/x-8即 6x-104/x-28=6x-40/x-14即 -64/x=14x=-32/7