Question

Calcule o valor da incógnita da figura abaixo.​

Answer 1

Boa Noite !!!

$\Rightarrow Resolverei\ por\ regra\ de\ 3:\\\\\frac{x}{14} = \frac{9}{12}\\\\12x = 9 . 14\\\\12x = 126\\\\x = \frac{126}{12} \\\\{\boxed{\boxed{\boxed{\sf x = 10,5 \checkmark }}}}$

Espero ter ajudado :-)

Att: LDC