已知1/x=1/y+4,求分式(6x+3xy-6y)/(x-y-2xy)的值?
初中数学分式已知x/y=2,求(x*x-xy+3y*y)/x*x+xy+6y*y的值
已知1/x-1/y=3,求分式(4x-5xy-4y)/(3x-2xy-3y)的值
已知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.已知x+y=-4,xy=3,求5(2分之1xy+2y)+[6x-(2xy+y-3x)]的值
八下数学分式(1)已知1/x-1/y=5,求分式3x+5xy-3y/x-3xy-y的值(2)已知x+1/x=3,求分式x
解一道分式题已知1/x-1/y=3 求分式(4x-5xy-4y)/(3x-2xy-3y)的值.
(1)已知1/X-1/Y=3,求分式(2X+3XY-2Y)/(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.
已知1/x+1/y=3,求分式(3x-3xy+3y)/(x+xy+y)的值
已知1/x-1/y=3,求分式3x-xy+3y/x+xy+y的值.