设变量xy满足(1)5x+2y-18=0(3)x+y-3>=0若直线kx-
设变量xy满足(1)5x+2y-18=0(3)x+y-3>=0若直线kx-
设变量xy满足 x+y-3 x-y+1 3x-y+5 z=x+y/x
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
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
设变量xy满足条件x+y≤3,x-y≥-1,x≥0,y≥0.且目标函数z=2x+3y的最大值为a,
已知变量x,y满足约束条件:x+y≧1,y≦3,x-y≦1,若z=Kx+y最大值为5,则实数k
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
设变量x,y满足约束条件x-y>=0,x+y=1,则目标函数Z=3x+y的最大值为多少?
设变量x,y满足约束条件x-y>=-1,x+y>=1,3x-y
变量x,y满足x-2y=0,x
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?