若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/11 00:56:56
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
即x+y=xy/2
原式=[3(x-y)-xy]/[3xy-(x+y)]
=[3(xy/2)-xy]/[3xy-(xy/2)]
=(xy/2)/(5xy/2)
=1/5
五分之一
由条件可知 xy=2(x+y)
将上式代入后面的式子 可得（x+y）/(5x+5y)=1/5
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
若xy/x+y=2,则3x-5xy+3y/-x+3xy-y=?/是分之
若x+y分之xy=2,则-x+3xy-y分之3x-5xy+3y=______
已知x+y分之xy=2,那么3x-5xy+3y分之3xy-x-y=
已知X+Y分之XY=2,求-X+3XY-Y分之3X+5XY+3Y
若xy/x+y=2,则3x-xy+3y/-x+3xy-y=
若x-y=4,xy=1,则(2x+y-2xy)-(3x+2y+xy)-(4xy+3y-5x)=
已知x-y=4xy,求x-2xy-y分之2x+3xy-2y的值!
若x分之一-y分之一=3,求x-4xy-y分之5x+2xy-5y
若x分之一-y分之一=3,求x-4xy-y分之5x+2xy-5y
若x分之1+y分之1=2,则分式x-xy+y分之2x+3xy+2y的值是多少
(x+2y-3xy+2x+y-xy)-(-2-y+xy),其中x+y=2分之1,xy=-2分之1
x*x+xy=3,xy+y*y=2,则x*x+2xy+y*y=________?
已知xy分之x-y=3,则分式x-2xy-y分之2x+3xy-2y的值是_____谢谢了,
已知x分之1-y分之1=3则x-xy-y分之5x+xy-5y
已知x分之1+y分之1=3,求2x-3xy+2y分之x+xy+y.
已知x分之1+y分之1=-2,则x+xy+y分之x-xy+y的值等于