Question

Решите пожалуйста, срочно

Answer 1

$\frac{ {2x}^{2} + 11x - 76}{ {x}^{2} - 16 } = 3$
$\frac{(2x + 19) \times (x - 4)}{(x- 4) \times (x + 4)} = 3$
$(x + 4) \times \frac{2x + 19}{x + 4} = 3(x + 4)$
$2x + 19 = 3(x + 4)$
$2x - 3x = 12 - 19$
$- x = 12 - 19$
$- x = - 7$
$x = 7$