(2.5-1.5+0.2)X+(1.8-1+0.1)Y =>10.8 1.2X+0.9Y>=10.8 (1)1.5X + Y <= 14 (2)(1)*5-(2)*40.5Y>=-2则 Y>=-4(1)*10-(2)*9-1.5X>=-18则 X<=12
请问题目肯定是对的吗?