Question

Calcule o valor de x nas proporções
5x/x+1 = 1/2

Answer 1

$\frac{5x}{x + 1} = \frac{1}{2} \\ 5x . 2 = (x + 1) . 1 \\ 10x = x + 1 \\ 10x - x = 1 \\ 9x = 1 \\ x = \frac{1}{9}$

Answer 2

$\frac{5x}{x+1} = \frac{1}{2}$
$x+1=10x$
$10x-x=1$
$9x=1$
$x= \frac{1}{9}$