Question

Determine o valor de x na figura abaixo:

Answer 1

9/15=x/18
9×18=15x
15x=162
X=162/15
X=10.8

Answer 2

$\frac{9}{15} = \frac{x}{18} \\ 15x = 9 \cdot 18 \\ 15x = 162 \\ x = \frac{162}{15} \\ x = 10,8$