Предмет: Математика, автор: sultanbekob

4(х+7)-16=64 решить уравнение

Ответы

Автор ответа: tatsach

Ответ:

Пошаговое объяснение:

4(х+7)-16=64

4(х+7)=64+16

4(х+7)=80

х+7=80:4

х+7=20

х=20-7

х=13

konstantinzarovniy77: Копировать я пожалуй не буду

Zoen: Администрация, можете посмотреть мой последний вопрос.

matveevav1963: Во-первых,нужно раскрыть скобки...(4х+28-16=64)

tatsach: скобки не всегда нужно открывать

Zoen: помогите с моим заданием

matveevav1963: Всегда,иначе это математическая ошибка,и не "открывать",а "раскрывать".

tatsach: кого на что учили

Автор ответа: grechkaSsS

Ответ:

вот..........................

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