Question

Calcule o x da proporcao
9x=3/5

Answer 1

$9x= \dfrac{3}{5} \to~~multiplique~~cruzado:\\\\\\ 45x=3\to \\\\ x= \dfrac{3}{45} \to~~simplifique~~por~~3:\\\\\\ \boxed{ x= \frac{1}{15} }$


$Verificando:\\\\ 9\times \dfrac{1}{15} = \dfrac{3}{5} \to ~~~~ \dfrac{9}{15} = \dfrac{3}{5} \to ~~~~ \dfrac{3}{5} = \dfrac{3}{5}$