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Помогите решить систему уравнений с двумя неизвестными, даю 35 балов. {x-y=3 {2x+y=6 Смотреть ответ shominasa shominasa Ответ: {-y=3-х {y=6-2x складываем 9-3х=0; х=3; подставляем значение в первое уравнение -у=3-3; у=0 Пошаговое объяснение: Новые вопросы в Математика 2 целых 1/3 + 2/3 как ?помагите!​ bu sorunun hatalı olduğunu düşünüyorum çünkü ebobu 12 olan 72 ve 12 var ama r sayısının 12 den büyük olduğu gösteriliyor yani cevap 0?​ Помогите пожалуйста Найдите производную. Как это решить? помогите, пожалуйста) ​ Решите вопрос этот пожалуйста Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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Answer 1

Конечно, я помогу вам решить данную систему уравнений.

У вас есть система уравнений:

1. $x - y = 3$
2. $2x + y = 6$

Давайте решим ее пошагово.

Сначала мы можем решить второе уравнение относительно $y$: $2x + y = 6$

Выразим $y$: $y = 6 - 2x$

Теперь подставим это значение $y$ в первое уравнение: $x - (6 - 2x) = 3$

Раскроем скобки и упростим: $x - 6 + 2x = 3$ $3x - 6 = 3$

Теперь добавим 6 к обеим сторонам уравнения: $3x = 9$

Разделим обе стороны на 3: $x = 3$

Теперь, когда мы нашли значение $x$, подставим его обратно в уравнение $y = 6 - 2x$: $y = 6 - 2 \cdot 3$ $y = 0$

Итак, решение системы уравнений: $x = 3$ $y = 0$

Оба значения $x$ и $y$ удовлетворяют обоим уравнениям, поэтому это правильный ответ.

Если у вас есть еще вопросы, не стесняйтесь спрашивать.