Предмет: Математика, автор: erkewka2010

раскройте скобки
) 3(6-5х); б) (4-у) 6; в) 9( - 8 - а); г) (3n+1)(-6); д) -5( -7 - у)
по действия​

Ответы

Автор ответа: Пеппер
1

Пошаговое объяснение:

а) 3(6-5х)=18-15х

б) (4-у) 6=24-6у

в) 9( - 8 - а)=-72-9а

г) (3n+1)(-6)=-18n-6

д) -5( -7 - у)=35+5у

Автор ответа: iramazurk
1

Ответ:

Пошаговое объяснение:

3(6 - 5х) = 3*6 - 3*5х = 18 - 15х

(4 - у)6 = 6*4 - 6*у = 24 - 6у

9(-8 -а) = 9* (-8) - 9* а = -72 - 9а

(3n + 1)(-6) = -6*3n + 1*(-6) = -18n - 6

-5(-7 - y) = -5*(-7) - (-5)*y = 35 + 5y

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