Предмет: Алгебра, автор: diana02042020

СРОЧНО 15 БАЛЛОВ
Найди значение
алгебраического выражения
0,7(4a + 3b)–6(0,3a + 0,76)
при а = 1, b = -5

Ответы

Автор ответа: kim08an
0

Объяснение:

0,7(4a+3b)-6(0,3a+0,76)=2,8a+2,1b-1,8a-4,56 =a+2,1b-4,56

a=1; b=-5

1+2,1×(-5)-4,56=-14,06

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