Вопрос:
508. Solve the system of equations: 3x - 2y = 16, 4x + y = 3.
Смотреть решения всех заданий с листаОтвет:
Solution:
- From the second equation, express y: y = 3 - 4x.
- Substitute this expression for y into the first equation: 3x - 2(3 - 4x) = 16 => 3x - 6 + 8x = 16 => 11x = 22 => x = 2.
- Substitute the value of x back into the equation for y: y = 3 - 4(2) = 3 - 8 = -5.
Answer: x = 2, y = -5
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