Предмет: Математика, автор: udinad246

помогите пж математика дам 87 балов

Приложения:

Ответы

Автор ответа: iramazurk

1

Ответ:

Пошаговое объяснение:

(а - 3b) * 5 = a - 15b

НЕВЕРНО.

Верно = 5а - 15b

4(а - 9b) = 4a - 36b

ВЕРНО

7(2m + 6n) = 14m + 6n

НЕВЕРНО

Верно = 14m + 42n

6(3х - 2у) = 18х + 12у

НЕВЕРНО

Верно = 18х - 12у

15(8х + 9) = 120х + 135

ВЕРНО

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