Предмет: Математика, автор: fewwew

помогите срочно срочно

Приложения:

Ответы

Автор ответа: Akimka

Відповідь:

Покрокове пояснення:

2у-10=у+5

у=5+10

у=15

Проверка:

2*15-10=15+5

20=20

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