Предмет: Математика, автор: nastyafedulova

решите уровнение под буквой д). Плииз. Очень надо! заранее СПАСИБО!

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Автор ответа: Ars1908

а - 3в = х
Например, привезли 10 кг печенья. Израсходовали по 2 кг печенья в день в течении 3 дней.
10 - 2 * 3 = 4 кг печенья осталось

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