min=7x+5x4x+3y-20≤0x-3y-2≤0x,y≥0min=7x+5y4x+3y-20≤0x-3y-2≤0y≥0
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/07 01:38:57
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