实数x,y满足3│x+1│+2│y-1│≤6,则2x-3y的最大值是

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 若实数x,y满足(x-y-5)²+│2x+3y+20│=20,求3x+2y+1的值.同上:若实数x,y满足(x-y-5)²+│2x+3y+20│=20,求3x+2y+1的值. 实数x,y满足3│x+1│+2│y-1│≤6,则2x-3y的最大值是 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x、y满足│y-更号3│+更号x-2=0,则y的x平方（ 若非负实数x、y满足2x+1 实数x,y满足x^3-y^3-3xy=1,则x-y= 实数x,y满足y=(根号2x)+(根号1-2x),求y最大值. 已知实数x,y满足y=|x-1|,则x+2y的最大值是 已知实数x,y满足y=|x-1|若x+2y 若实数xy满足x-y+1 若实数x,y是满足1 已知实数x、y满足-1 已知实数x,y满足：1 已知实数x,y满足x^+y^+2x-2根号3y=0(1)x^+y^的最大值 （2）x+y的最小值 已知实数x,y满足,X-2y≥-4,3x-2y≤12,x+y≥2,则y/(x+1)的取值范围 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值