Предмет: Математика, автор: Аноним

-х-7=-9 допоможіть будь ласка

Ответы

Автор ответа: Аноним

1

-х-7=-9
-х=-9+7
-х=-2
х=2

Автор ответа: tausinv

1

-х - 7 = - 9
х + 7 = 9
х = 2

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