计算题求过程[答者必赞]900x+1200x+1100(60-x-y)-61000-1500
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计算题求过程[答者必赞]900x+1200x+1100(60-x-y)-61000-1500计算题求过程[答者必赞]900x+1200x+1100(60-x-y)-61000-1500计算题求过程[答
计算题求过程[答者必赞]900x+1200x+1100(60-x-y)-61000-1500
计算题求过程[答者必赞]
900x+1200x+1100(60-x-y)-61000-1500
计算题求过程[答者必赞]900x+1200x+1100(60-x-y)-61000-1500
＝900x+1200x+66000-1100x-1100y-61000-1500
＝1000x-1100y+3500
=100(9x+12x + 11*60 -11x - 11y - 610 - 15)
=100(660 -610 -15 + 10x -11y)
=100(35 + 10x-11y)