已知实数x,y满足关系式| x+y-7 |+√(xy-6)=6,求(x+2y)÷(y-x)的值

已知实数x,y满足关系式| x+y-7 |+√(xy-6)=6,求(x+2y)÷(y-x)的值 已知实数x、y满足关系式绝对值x+y-7绝对值+根号（xy-6)=0,求代数式（x+2y)/(y-x)的值 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 已知实数xy满足x^2+y^2-6x+4y+13=0求x^y的值 已知实数x满足x^2+2xy+y^2-(x+y)-6=0则x+y的值 已知实数x、y满足x^2+4xy+4y^2+x+2y-6=0,求6/(x+2y)的值 已知实数X,Y满足关系式1/2（x+y+5）=2√(x-1)+√(y-1),求x、y的值 若正实数x,y满足2x+y+6=xy,求xy的最小值. 已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值 已知实数x,y满足2x的平方+6xy+9y的平方-2x+1=0,试求x,y的值 已知实数X.y满足X^2+xy-y^2=0,求x/y的值 已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值