Предмет: Математика, автор: litvinenkoanastasia3

срочно - 7 (2-3 x ) = 56 ​

Ответы

Автор ответа: ekovalev08
1

Ответ:

x=3 \frac{1}{3}

Пошаговое объяснение:

-7(2 - 3x) = 56;

-14+21x=56

21x=56+14

21x=70

x=70:21

x=3 \frac{1}{3}

Можно лучший? :3

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