Предмет: Математика, автор: neznaika9720

Решите что сможете кроме 1,2 задания

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Ответы

Автор ответа: clashpitera

0

Ответ:

5a+3b/4=3

3b/4=7-5a

3b=4*(7-5a)

3b=28-15a

b=(28-15a)/3

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