Question

Nas figuras, a // b // c, calcule o valor de X.

Answer 1

Resposta:

$\frac{x}{14} = \frac{9}{12} \\ 12x = 9.14 \\ 12x = 126 \\ x = \frac{126 \div 2}{12 \div 2} \\ x = \frac{63 \div 3}{6 \div 3} \\ x = \frac{21}{2} \\ x = 1.5$