Предмет: Алгебра, автор: thehoma1599

Упростите и решите выражение
При a=-1
3(a-9)-7(2-a)+4
Заранее спасибо.

Ответы

Автор ответа: lana8300

0

Ответ:

Объяснение:

3(a-9)-7(2-a)+4=3а-27-14+7а=10а-41

10*(-1)-41=-10-41=-51

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