(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
(2012•商丘二模)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y+x≤1y-x≤1y≥0
若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0
(2013•温州二模)若实数x,y满足不等式组x+2y≥22x+y≤4x−y≥−1,则3|x-1|+y的最大值是( )
(2013•烟台一模)已知实数x,y满足不等式组2x−y≥0x+2y≥03x+y−5≤0,则2x+y的最大值是( )
(2008•闸北区二模)设x、y满足约束条件:x+y≤1y≤xy≥0.则目标函数z=2x+y的最大值为( )
(2009•闸北区二模)设x,y,z为正实数,满足x-y+2z=0,则y
若实数x,y满足不等式组x+3y−3≥02x−y−3≤0x−my+1≥0
已知实数z、y满足不等式组x−2y+3≥03x+2y−7≤0x+2y−1≥0,则x-y的最小值为( )
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
不等式:设实数x,y满足3