Question

Me ayudais porfiiiii

Answer 1

Respuesta:

$\frac{4}{x + 5} - \frac{6}{5x} = \frac{8}{3x(x + 5)} \\ \frac{4(5x) - 6(x + 5)}{5x(x + 5)} = \frac{8}{3x(x + 5)} \\ \frac{20x - 6x - 30}{5x(x + 5)} = \frac{8}{3x(x + 5)} \\ \frac{14x - 30}{5x(x + 5)} = \frac{8}{3x(x + 5)} \\ \frac{14x - 30}{5x} = \frac{8}{3x} \\ 3x(14x - 30) = 5x(8) \\ 14x - 30 = \frac{40x}{3x} \\ 14x - 30 = \frac{40}{3} \\ 3(14x - 30) = 40 \\ 42x - 90 = 40 \\ 42x = 130 \\ x = \frac{65}{21}$