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Какие из пар чисел (1;2),(-3;-1),(2;4) являются решением системы 1){2х-у=0 {3х-2у+2=0 ПЖЖЖЖЖЖ ПАМАГИТИИИИИИ СРОЧНО НАДО!!!!!! ДАМ 20 БАЛЛОВ Посмотреть ответы yadgartolegen09 yadgartolegen09 {2×2-4=0{3×2-2×4+2=0(2;4) правильный ответ cmunanu853 cmunanu853 Ответ:Пошаговое объяснение:2, 4 Новые вопросы в Математика 247°. Із чисел від дванадцяти до соро- ка випишіть ті, які є спільними кратними чисел: 1) 3 i 5; 2) 3 i 6; 3)3 і 12​ Допоможіть будь ласка: Записати числом 15 із чисел: а)12 б)75 в)18 г)28 Дякую 50 балов привет, набираю участников в школу фей, травниц, для етого надо мне ответить и запилнить анкету . имя .возраст .никнейм в телеге Допоможить будь ласка ДОПОМОЖІТЬ БУДЬ ЛАСКА 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

Solving the System of Equations

To determine which pairs of numbers are solutions to the system of equations, let's solve the system step by step.

The given system of equations is: 1) 2x - y = 0 2) 3x - 2y + 2 = 0

To solve this system, we can use the method of substitution or elimination. Let's use the method of substitution.

From equation 1), we can express y in terms of x: y = 2x

Substituting this expression for y in equation 2), we get: 3x - 2(2x) + 2 = 0 3x - 4x + 2 = 0 -x + 2 = 0 x = 2

Now, substitute the value of x back into equation 1) to find y: 2(2) - y = 0 4 - y = 0 y = 4

Therefore, the solution to the system of equations is x = 2 and y = 4.

Now let's check which pairs of numbers from the given options (1;2), (-3;-1), (2;4) satisfy the system of equations.

- For the pair (1;2): - Equation 1): 2(1) - 2 = 0 - 2 = -2 (not equal to 0) - Equation 2): 3(1) - 2(2) + 2 = 3 - 4 + 2 = 1 (not equal to 0) - Therefore, (1;2) is not a solution to the system of equations.

- For the pair (-3;-1): - Equation 1): 2(-3) - (-1) = -6 + 1 = -5 (not equal to 0) - Equation 2): 3(-3) - 2(-1) + 2 = -9 + 2 + 2 = -5 (not equal to 0) - Therefore, (-3;-1) is not a solution to the system of equations.

- For the pair (2;4): - Equation 1): 2(2) - 4 = 4 - 4 = 0 - Equation 2): 3(2) - 2(4) + 2 = 6 - 8 + 2 = 0 - Therefore, (2;4) is a solution to the system of equations.

Therefore, the pair (2;4) is the only solution to the given system of equations.

Note: The solution was obtained by solving the system of equations step by step. The pair (2;4) is the only solution that satisfies both equations.