x+y/2+ x-y/2=6 2(x+y)-3x+3y=24 求X Y

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= 化简y(x+y)+(x+y)(x-y)-x^2 x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2 [(2x-y)(2x+y)+y(y-6x)]÷2x=? （x+y）/2- x-y/2=6 3(x+y)=4(x-y) x+y/3+x-y/2=6 4(x+y)-2(x-y)=40 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 {6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1 6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5 x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20 {(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20 4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6 若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于 x,y 满足x(x-2)-y(y-6)=-10,求x,y的值