已知（x-2）2+|y+1|=0，求X,Y的值

已知x-y/x=x/x-2y（y不等于0）,求x：y的值已知x-y/x=x/x-2y（y不等于0）,求x：y的值已知x-y/x=x/x-2y（y不等于0）,求x：y的值如果是(x-y)/x=x/x-2

已知x-2y=0,求y/（x^2-y^2）除以1/（x-y）的值已知x-2y=0,求y/（x^2-y^2）除以1/（x-y）的值已知x-2y=0,求y/（x^2-y^2）除以1/（x-y）的值=1/3

已知2x-y=0,求分式【1+（3*y*y*y/x*x*x-y*y*y）】/【1+（2y/x-y）】的值注：x*x*x-y*y*y=（x-y）*（x*x+xy+y*y）已知2x-y=0,求分式【1+（

已知x+y=a,2x-y=-2a,求[（x/y-y/x)/(x+y)-x(1/x-1/y)]/[(x+1)/y]的值已知x+y=a,2x-y=-2a,求[（x/y-y/x)/(x+y)-x(1/x-1

已知（x+y）×（x+y+2）-8=0,求x+y的值已知（x+y）×（x+y+2）-8=0,求x+y的值已知（x+y）×（x+y+2）-8=0,求x+y的值（x+y）×（x+y+2）-8=0（x+y）

已知|2x-3y|+|3x-y-1|=0,求x,y的值.已知|2x-3y|+|3x-y-1|=0,求x,y的值.已知|2x-3y|+|3x-y-1|=0,求x,y的值.2x-3y=0(1)3x-y-1

已知（x+y）(x+y-10)+25=0,且x-y=2,求x,y的值?已知（x+y）(x+y-10)+25=0,且x-y=2,求x,y的值?已知（x+y）(x+y-10)+25=0,且x-y=2,求x

已知X,Y满足|X-Y-1|+（X+Y-3)^2=0求X,Y的值已知X,Y满足|X-Y-1|+（X+Y-3)^2=0求X,Y的值已知X,Y满足|X-Y-1|+（X+Y-3)^2=0求X,Y的值X=2T

已知x*x-4xy+4y*y=0求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?已知x*x-4xy+4y*y=0求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的

已知4y^2+4y+1+|x-1|=0求[(x-2y)^2-(2x+y)(2x-y)+(3x-y)(x+y)]÷（2y）的值已知4y^2+4y+1+|x-1|=0求[(x-2y)^2-(2x+y)(2

已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除以y的值大神们帮帮忙已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除

已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]÷y的值已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]

已知x+2y-1的绝对值+（x-y-13）ˇ2=0,求x,y的值已知x+2y-1的绝对值+（x-y-13）ˇ2=0,求x,y的值已知x+2y-1的绝对值+（x-y-13）ˇ2=0,求x,y的值|x+2

已知x=3分之1,y=二分之一,求代数式x-(x+y）+（x+2y)-(x+3y)+...-(x+13y)的值已知x=3分之1,y=二分之一,求代数式x-(x+y）+（x+2y)-(x+3y)+...

已知|x-3y+6|+（x+2y-1）的平方=0,求x+y的值已知|x-3y+6|+（x+2y-1）的平方=0,求x+y的值已知|x-3y+6|+（x+2y-1）的平方=0,求x+y的值根据题意得x-

已知（2x-y-1）的平方+|4x+3y-3|=0,求x,y的值已知（2x-y-1）的平方+|4x+3y-3|=0,求x,y的值已知（2x-y-1）的平方+|4x+3y-3|=0,求x,y的值（2x-

已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值已知x-y=3,求[（x+y)(x-

已知x≠y,x^2-x=y^2-y,求x+y的值.已知x≠y,x^2-x=y^2-y,求x+y的值.已知x≠y,x^2-x=y^2-y,求x+y的值.x²-x=y²-yx²

已知：【（x²+y²）-（x-y)²+2y（x-y)】÷4y=,求4x/（4²-y²）-1/（2x+y)的值已知：【（x²+y²）

已知（x-2y）^2+|3x-1-2y|=0,求x+5y的值已知（x-2y）^2+|3x-1-2y|=0,求x+5y的值已知（x-2y）^2+|3x-1-2y|=0,求x+5y的值(x-2y)^2>=