5x=6y 6x-1.1=5y x=?y=?

(x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5 {6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1 x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2 6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5 （5x-6y)(x+y)=0(x不等于y),则y/x= （x+y-5)*（x+y-5)+（x-y+3)=0 x*x-y*y 已知:3x-5y=0,求x/y,x-y/y,x-y/x 5x=6y 6x-1.1=5y x=?y=? 3x+5y-(x+y)=6 2(x+y)-3x=-7 X+Y=5 X*Y=6 求X,Y是多少,就是证明.X+Y=5 X*Y=6 求X,Y是多少, 已知x.x+y.y-6x-8y+25=0,求3x.x+5y的值 x+y=5; x^y+y^x=17 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 若(X×X+Y×Y)(X×X+Y×Y-5)=36,则X×X+Y×Y＝ 把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)= 3(x-y)把(x-y)看作一个整体,化解:5(x-y)+2(x-y)-4(x-y)=3(x-y)²-4(x-y)+7(x-y)-6(x-y)²= (X-Y)(X+Y)=5 能解么 5x-4y(y-x)=? y''-5y'+6y=3x+1通解