Question

$\frac{5}{x} = \frac{7}{x - 4}$

Answer 1

Hope my answer will help you

Answer 2

$i \: hope \: it \: will \: help \: you \: ..... \: \: \\\ \ \: \: \: \: \: \frac{5}{x} = \frac{7}{(x - 4)} \\ = > 5(x - 4) = 7x \\ = > 5x - 20 = 7x \\ = > 5x - 7x = 20 \\ = > - 2x = 20 \\ = > x = \frac{20}{ - 2} \\ = > x = - 10 \: answer$