变量x,y满足{x-4y+3≤0 3x+5y-25≤变量x,y满足{x-4y+3≤03x+5y-25≤0x≥1 设Z=X2+y2+6x-4y+13,求z取值范围

设变量x.y满足条件3x+2y 设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2 设变量x,y满足约束条件:x-y+3>=0 x+y>=0 -2 设变量x,y满足约束条件x-y>-1,x+y>1,3x-y 变量x,y满足约束条件,x+y>=3,x-y>=-1,2x-y 目标函数z=2x+y,变量x满足x-4y+3 变量x,y满足x-2y=0,x 已知变量x,y满足约束条件x+2y-3=0,y-1 已知变量x,y满足约束条件x+2y-3=0,y-1 已知两个变量x,y满足3x-2y=4,则y=? 若变量x,y满足约束条件{x>=-1;y>=x;3x+2y 设变量x,y满足x+y 若变量x y满足约束条件x+y≤5 x-y≤-1 x≥0 则z=3x-2y的最小值 变量x,y满足{x-4y+3≤0 3x+5y-25≤变量x,y满足{x-4y+3≤03x+5y-25≤0x≥1 设Z=X2+y2+6x-4y+13,求z取值范围 已知变量x,y满足约束条件2x-y≤0,x-3y+5≥0,求10^(x+y-1)的最大值 已知变量x,y满足3个不等式分别是x-4y+3 已知变量x,y满足3个不等式分别是x-4y+3 已知变量x,y满足3个不等式分别是x-4y