Linear programing, Operation Research

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Maximize6x1+8x2+5x3,st,labour3x1+4x2+5x3<=160hours,metal1x1+2x2+3x3<=100pounds,plastic2x1+2x2+2x3<=110pounds,x1,x2&x3>=0 then brefly explain x1,x2,x3;term labour,metal&plastic;the160hours;x1,x2&x3>=0

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