Предмет: Математика, автор: dsunat

7(y-3)=-2(y+3) решите пж

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Автор ответа: Аннета680068

0

7у-21=-2у-6
7у+2у=-6+21
9у=15
у=15/9
у=1 6/9
у=1 2/3

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