Предмет: Математика, автор: Аноним

упростите выражение 27a-8a-10a+21 и найдите его значение при a = 11?

Ответы

Автор ответа: Аноним
3
27а - 8а - 10 а + 21 = 9а + 21
9*11+21= 99+21= 120
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