найдите корень уравнения 7х/9 -3х/4=5/12

найдите корень уравнения 7х/9 -3х/4=5/12
- Предмет:
  Математика
- Автор:
  begoñabrooks
- 5 лет назад

Ответы 1

Приведём обе части уравнения к общему знаменателю 36 и решим как обычное уравнение7х * 4 - 3х * 9 = 5 * 328х - 27х = 15х = 15 - корень уравнения-----------------------Проверка: (7*15)/9 - (3*15)/4 = 5/12 105/9 - 45/4 = 5/12 420/36 - 405/36 = 5/12 15/36 = 5/12 - верно, если дробь 15/36 сократить на 3
- Автор:
  reagan89
- 5 лет назад
- 0
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найдите корень уравнения 7х/9 -3х/4=5/12

Ответы 1

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