Предмет: Математика, автор: вячеслав30

как решить это уравнения

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Автор ответа: Polinaschokoladkina

25х:27=5:18 Решаем перекрестным методом 25х*18=5*27 Сокращаем обе части уравнения на 5,получаем 5х*18=27 Сокращаем на 9 5х*2=3 10х=3 Х=3/10 или 0,3 2)13х:17= 39 Представим 39 как 39/1 и дальше по такому же алгоритму

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