Question

determine o valor de x
$\frac{x}{x + 4} = \frac{x + 1}{x}$
obs: teorema de Tales!

Answer 1

$x(x)=(x+4)(x+1)$

$x^{2} =x^{2} +1x+4x+4$

$x^{2} -x^{2} -5x=+4$

$x=-\frac{4}{5}$