已知x−y+2≥0x+y−4≥02x−y−5≤0

已知x−y+2≥0x+y−4≥02x−y−5≤0 已知实数x，y满足2x+y−2≥0x−2y+4≥03x−y−3≤0则x 已知x，y满足约束条件x−y+5≥0x+y≥0x≤3，则z=x+2y的最小值为（　　） 已知x，y满足约束条件x−y+5≥0x+y≥0x≤3 已知实数x，y满足x−y+5≥0x≤3x+y≥0 已知实数x，y满足2x+y−2≥0x−2y+4≥03x−y−3≤0 已知实数x、y满足2x−y≤0x+y−5≥0y−4≤0 （2013•成都二模）已知集合{(x，y)|2x+y−4≤0x+y≥0x−y≥0} （2012•道里区三模）已知x，y满足条件x≥0x−y+2≥02x+y−5≤0 设变量x，y满足约束条件x−y≥0x+y≤1x+2y≥1 （2012•浙江模拟）已知实数x，y满足约束条件2x−y≤0x−3y+5≥0y≥1 已知实数x，y满足条件2x+y≥3x+y−3≤0x≥0y≥0