Question

Решите систему уравнений способом сложения: {3х+2у= 16 {5х-4у= -10 пжж это СОЧ​ Смотреть ответ iskahamm007 iskahamm007 Ответ: x=2 y=5 Пошаговое объяснение: {3x+2y=16 |×4 {12x+8y=64 _ {x=2 {5x-4y=-10 |×2 {10x-8y=-20 _> {y=5 __________ 22x=44 6+2y=16 x=2 2y=10 y=5 разве неправильное решение Новые вопросы в Математика Der Spielplatz bekommt eine neue Einfassung aus Rundhölzern. Dies sind unten angespitzte runde Pfosten, die in den Boden geschlagen werden. Der Abstan … d vom Baumstamm soll 1,5 m betragen. Die Rundhölzer haben einen Durchmesser von 10 cm. Wie viele Hölzer werden benötigt? № 4. Чи є взаємно-простими числа: 1) 2 i 65; 2) 55 i 75.ДАМ 30 БАЛЛОВ!!!!! 3. Яке із чисел є взаємно простим із числом 24: A. 25. Б. 26. B. 28. Г. 44? 6. Решите уравнения. a) 2 . x + 5 657 6) 80 750 - 900 Tus орн 4 823 - 19 678 - 4 234 (250 - y) = 95 589 - 14 845​ всього було 48 чоловык дывчат було у 3 рази менше ныж хлопцыв скыльки було дывчат ы хлопцыв 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

Решение, которое вы предоставили, является правильным для данной системы уравнений:

Система уравнений:

1. 3x + 2y = 16
2. 5x - 4y = -10

Шаг 1: Мы можем умножить первое уравнение на 2, чтобы избавиться от переменной y:

Умножим первое уравнение на 2: 2(3x + 2y) = 2(16) 6x + 4y = 32

Шаг 2: Теперь сложим это уравнение с вторым уравнением:

(6x + 4y) + (5x - 4y) = 32 - 10

Шаг 3: Производим сложение:

6x + 5x = 22 11x = 22

Шаг 4: Разделим обе стороны на 11, чтобы найти x:

11x / 11 = 22 / 11 x = 2

Шаг 5: Теперь, когда у нас есть значение x, мы можем найти значение y, подставив x обратно в любое из исходных уравнений. Давайте используем первое уравнение:

3x + 2y = 16 3(2) + 2y = 16 6 + 2y = 16

Выразим y:

2y = 16 - 6 2y = 10

Разделим обе стороны на 2:

2y / 2 = 10 / 2 y = 5

Итак, решение системы уравнений:

x = 2 y = 5

Ваши ответы (x = 2, y = 5) верны.