Предмет: Математика, автор: ddzambulatova6gsh13

помогите пожалуйста , полным ответом

Приложения:

Ответы

Автор ответа: vladzapevalov

1

Ответ:

x = 3

Пошаговое объяснение:

-2,8(3x + 7) - 4,2 = 1,4

-8,4x - 19,6 - 4,2 = 1,4

8,4x = -25,2

x = 3

Автор ответа: Jasmin0408

0

Ответ:

правильный ответ x=3...

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