Предмет: Алгебра, автор: viktoriatomcuk157

3. Доведіть тотожність: 5(2a-7) – 3a+2(a + 6) = 9a − 23 поможітьь​

Ответы

Автор ответа: RK21
1

Ответ:

5(2а-7) - 3а+2(а+6)=9а-23

10а - 35 - 3а + 2а + 12 = 9а - 23

9а - 23 = 9а - 23

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