Предмет: Математика, автор: lolkek4eburek1212121

СРОЧНО ДАЮ 100 БАЛЛОВ!

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Автор ответа: g7m9qy3hxc

Ответ:

Номер 1

2 - 3(х + 2) = 5 - 2х

2 - 3х - 6 = 5 - 2х

-3х + 2х = 5 - 2 + 6

-1х = 9

х = -9

номер 2

сначала буду записывать числитель, потом знаменатель через /

b + a / ab умножить на 2ab/ a-b

1 / b умножить на 2b / a - b

2 / a - b

Извини больше ничем не смогу помочь, я в 7 классе

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