已知│2x-y-3│+(2x+y+11)×(2x+y+11)=0,则x=? y=?

已知│2x-y-3│+(2x+y+11)×(2x+y+11)=0,则x=? y=? 已知：集合A={(x,y)│3x-2y=11},B={(x,y)│2x+3y=16}求A∩B 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值 已知3x =2y 求x/x+y+y/x-y-y²/x²-y² 已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y 已知(3X-2Y+1)的平方+│4X-3Y-3│=0,求X,Y 已知 2x-3y/y等于2 求x-y/2x 求x-3y/2x+y 已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y 已知实数x,y满足√(2x-3y-1)+│x-2y+2│=0,求2x-5分之1y的平方根 已知实数x,y满足关系式│x+y-3│+根号（xy-6）=0,求代数式（x+2y）/y-x的值 已知│2x-y-3│+(2x+y+11)2=0(2为次数)x,y为A.x=2 y=1 B x=0 y=-3 C x=-1 y=-5 D x=-2 y=-7 已知(3x+2y-5)2次数与|5x+3y-8|互为相反数,则x,y等于什么 已知x+y/y=11/8,求x-y/x+2y的值. 已知2x=3y,则y分之x=< >,y分之x+y=< >. 已知：2x+y=6,x-3y=1 求7y(x-3y)(x-3y)-2(3y-x)(3y-x) 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)]÷y的值 (3x-2y)(4x-5y)-11(x+y)(x-y)+5xy,已知X=3又1/2,y=2又1/3