Предмет: Алгебра, автор: маркина

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7+3(-х-3(х+5))=5(7-2х)+х решите уравнение

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Автор ответа: sh12

0

7+3(-х-3х-15)=35-10х+х
7-3х-9х-45=35-10х+х
-3х-9х+10х-х=35-7+45
-3х=73
х= 73 :(-3)
х= 24 1/3

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