变量x,y满足x-2y=0,x
变量x,y满足x-2y=0,x
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
若变量x,y满足约束条件{x>=-1;y>=x;3x+2y
已知变量x,y满足约束条件x+2y-3=0,y-1
已知变量X.Y满足
若变量x,y满足约束条件x+y≤2x≥1y≥0
设z=2x+y式中变量x,y同时满足x-4y
设变量x,y满足约束条件 {x-y≥0,x+y≤1,x+2y≥0},则函数Z=2x+y 的最大值?
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
目标函数z=2x+y,变量x满足x-4y+3
设变量x y满足约束条件x-y≥-1 x+y≥1 2x-y≤1 z=(x-2y)/(x+y)的最大值
设变量xy满足约束条件x-y≥0,x+y-2≥0,3x-y-6≤0则目标函数z=2x-y