1.已知1/x-1/y=5,求分式3x+5xy+3y/x-3xy-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.
已知,1/x+1/y=5.,求分式3x+xy+3y/x-2xy+y的值
1.已知1/x-1/y=5,求分式3x+5xy+3y/x-3xy-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
已知xy/x+y=二分之一,求分式3x-xy+3y/x-xy+y的值
已知x-y/xy=3,求分式2x+3xy-2y/x-2xy-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
已知x分之1-y分之1=5,求分式3x+5xy-3y分之x-3xy-y的值