Question

Meee aajudeem pfvrrr

Answer 1

Resposta:

D

Explicação passo-a-passo:

$\dfrac{x}{x+6}=\dfrac{4}{12}$

$12x=4\cdot(x+6)$

$12x=4x+24$

$8x=24$

$x=\dfrac{24}{8}$

$\boxed{x=3}$