若实数x,y满足不等式组2x+y≤4x≥0y≥0
若实数x,y满足不等式组2x+y≤4x≥0y≥0
若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0
若实数X,Y满足不等式组y≤2,x-y≥0,x-2y≤0.则z=x+y的最大值为
若实数xy满足不等式组x-2y≥0,x+y-3≥0,x-y-3≤0,则2x-y的最小值为?
若实数x,y满足不等式组2x−y≥0x+y−3≥03x+y−8≤0
若实数x、y满足不等式组x+y≥22x−y≤4x−y≥0
若实数x,y满足不等式组x>=0 ,y>=0,x+2y
设实数x,y满足不等式组y+x≤1y-x≤1y≥0
设实数x、y满足不等式组x+2y-5>02x+y-7>0x≥0,y≥0,若x、y为整数,则3x+4y的最小值是( )
已知实数满足不等式组 x-2y+4≥0 x+y-2≥0 x≤2 则z=2x-y 的最小值为
已知实数xy满足不等式组x≥0,y≤x,x+y-4≤0,则z=2x-y的最大值为
若实数x,y满足不等式组x+y≥2①;2x-y≤4②;x-y≥0③,则2x+3y的最小值是