Предмет: Математика, автор: daryaspiridon

Из суммы a и b вычтите их удвоенную разность и упростите . Заранее огромное спасибо

Ответы

Автор ответа: triolana

(a+b)-2(a-b)=a+b-2a+2b=3b-a
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eltsovdenis: Скобки раскрыла, а знаки не поменяла

daryaspiridon: Кстати да

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