作业帮已知x-y=3xy,求2x+3xy-2y/x-2xy-y
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已知x-y=3xy,求2x+3xy-2y/x-2xy-y
已知x-y=3xy,求2x+3xy-2y/x-2xy-y
已知x-y=3xy,求2x+3xy-2y/x-2xy-y
2x+3xy-2y/x-2xy-y
=[2(x-y)+3xy]/[(x-y)-2xy]
=(6xy+3xy)/(3xy-2xy)
=9
9
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