Предмет: Алгебра, автор: koteshok2000

Составьте выражение с переменной по условию задачи. На одной полке x книг,а на второй на 18 книг меньше.Сколько всего книг на обеих полках

Ответы

Автор ответа: milkana

0

на первой полке x, тогда на другой полке x-18
всего y книг

x+ (x-18) = y

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