Предмет: Алгебра, автор: anastasiya1411200776

Помогите пожалуйста срочно нужно
Решите линейное уравнение с одной переменной : -2,8x-3,5=-43,2x+77,3

Ответы

Автор ответа: moiseevat67

3

Ответ:

x=2

Объяснение:

решение приложено в фото

Приложения:

Автор ответа: ksyuwi

2

$-2,8x-3,5=-43,2x+77,3\\\\-2,8x+43,2x=77,3+3,5\\\\40,4x=80,8\\\\x=80,8:40,4\\\\x=2$

Проверка:

$x=2\\\\-2,8*2-3,5=-43,2*2+77,3\\\\-5,6-3,5=-86,4+77,3\\\\-9,1=-9,1$

Ответ: x = 2

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