若1/x-1/y=3,则分式3x-xy-3y/x+2xy-y的值为
若1/x-1/y=3,则分式3x-xy-3y/x+2xy-y的值为
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?
若(y-x)/xy=3,求分式(2x+3xy-2y)/(x-2xy-y)的值
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
若x分之1-y分之1=3,则分式x-2xy-y分之2z+3xy-2y的值为
已知x分之1-y分之1=3,则分式(x-2xy-y)分之(2x+3xy-2y)的值为?
已知1/x-1/y=3则分式(2x-3xy-2y)/(x-2xy-y)的值为
已知x/1-Y/1=3,则分式x-2xy-y/2x+3xy-2y的值为_
已知x分之1+y分之1=5,则分式x+2xy+y分之2x-3xy+2y的值为
已知x-y/xy=3,求分式2x+3xy-2y/x-2xy-y的值.