Ответ:
-14,2x+12.5y
Объяснение:
-(18x+7.5y)+(3.8x+20y)=-18x-7.5y+3.8x+20y=-14,2x+12.5y
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Ответ:
-14,2x+12.5y
Объяснение:
-(18x+7.5y)+(3.8x+20y)=-18x-7.5y+3.8x+20y=-14,2x+12.5y