Предмет: Алгебра, автор: mexanikgood

Люди помогите, я тупой.

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Ответы

Автор ответа: ToriVegass

1

ответ:

$\displaystyle -20,09a+2n$

решение:

$\displaystyle 9,7a+n+n-29,79a=-20,09a+n+n=-20,09a+2n$

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