Предмет: Математика, автор: topoviychelik69

СРОЧНО!!!!!!!!! ФОТО ПРИКРЕПИЛ

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Автор ответа: nastyamilena10

0

Пошаговое объяснение:

а) 2а-3в+а+3в-2а=а

б)6а-12-6а+15= 3

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