1、当1/x-1/y=5时,求分式(3x+5xy-3y)÷(x-3xy-y)的值.

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/10 19:29:50

1/x-1/y=5
y-x=5xy
(3x+5xy-3y)÷(x-3xy-y)
=(-15xy+5xy)/(-5xy-3xy)
=-10xy/(-8xy)
=5/4

1、当1/x-1/y=5时,求分式(3x+5xy-3y)÷(x-3xy-y)的值. 当1/x-1/y=2时,求分式2x+3xy-2y/x-2xy-y的值解一道分式题已知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-3xy+3y)/(x+xy+y)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=3,求分式3x-xy+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 1.已知1/x-1/y=5,求分式3x+5xy+3y/x-3xy-y的值；已知1/x-1/y=5,求分式3x+5xy-3y/x-3xy-y的值. 已知1/x-1/y=5,求分式3x+5xy-3y/x-3xy-y的值