若1/x-1/y=3,则分式(2x+3xy-2y)/(3x-2xy-3y)=

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1/x-1/y=3
(y-x)/xy=3
y-x=3xy
(2x+3xy-2y)/(3x-2xy-3y)=(3xy-6xy)/(-2xy-9xy)=3/11

若X/1-y/1=3 求分式:x-2xy-y/2x+3xy-2y 若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值若y-x/xy=3,求分式2x+3xy-2y/x-2xy-y 若实数x,y满足1/x-1/y=5,则分式3x-2xy-3y/x+xy-y的值等于? 已知1/x-1/y=3,求分式(2x+3xy-2y)/(x-2xy-y) 已知1/x+1/y=3,求分式3x-2xy+3y/x+xy+y的值 1/x+1/y=3.求分式3x-2xy+3y/x+xy+y的值已知,1/x+1/y=5.,求分式3x+xy+3y/x-2xy+y的值 1/x-1/y=4,求分式（3x+xy-3y）/(x-2xy-y) 已知x-y/xy=3,求分式2x+3xy-2y/x-2xy-y的值. 若1/x-1/y=3,则分式(2x+3xy-2y)/(3x-2xy-3y)= 1.若1/x+1/y=2,则分式2x+3xy+2y/x+2xy+y=（）