Question

Решите Систему Уравнений

Answer 1

1)
$3x + 4y = 0 \ 2 x + 3y = 0 \ \ 3x + 4y = 0 \ - 3x - 4.5y = - 1.5 \ \ - 0.5y = - 1.5 \ y = 3 \ x = - 4$

2)
$7x + 2y = 0 \ 4y + 9x = 10 \ \ 14x + 4y = 0 \ 9x + 4y = 10 \ \ 5x = - 10 \ x = - 2 \ y = 7$

3)
$5x + 6y = - 20 \ 9y + 2x = 25 \ \ - 7.5x - 9y = 30 \ 9y + 2x = 25 \ \ - 5.5x = 55 \ x = - 10 \ y = 5$

4)
$3x + 1 = 8y \ 11y - 3x = - 11 \ \ 3x - 8y = - 1 \ - 3x + 11y = - 11 \ \ 3y = - 12 \ y = - 4 \ x = - 11$

Answer 2

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