(2012•上海二模)如果实数x,y满足:x−y+1≤0x+y−2≤0x+1≥0
(2012•商丘二模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
若实数x,y满足x≥1x+y≤4x−2y+c≤0
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
(2012•唐山二模)设变量x、y满足x+y≥1x−y≥02x−y−2≤0,则目标函数z=2x+y的最小值为( )
若实数x,y满足x−y+1≥0x+y≥0x≤0
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥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( )
若实数x,y满足条件0≤x≤10≤y≤22y−x≥1
(2012•安徽模拟)已知实数x,y满足x−2y+2≥0y≥|x|
若实数x、y满足x−y+1≤0x>0x≤2
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
若实数x,y满足约束条件x-y≥0,x+y≥0,2x+y≤1,则y/(x+1)的最大值是多少,