Предмет: Математика, автор: gubaidullindaniel131

Сор пожалуйста помогите расписывать надо

Приложения:

Ответы

Автор ответа: natalyvd
1

Ответ:

40 и 65

Пошаговое объяснение:

Приложения:
schoolhelper993: а ты забыл про первую написать
natalyvd: а там в вопросе только про вторую и третью
Автор ответа: schoolhelper993
1

Ответ:

на первой полке 80 книг на второй 40 на третий 65

Пошаговое объяснение:

2x+x+x+25=185

4x=160

x=160:4

x=40

На второй полке 40

на первой 40×2=80

на третей 40+25=65

40+25+65=180

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