Respuesta :

mhanifa

Answer:

  • D. 18

Step-by-step explanation:

Ray BD bisects ∠ABC,

and 2 equal angles formed:

  • ∠ABD = ∠DBC

Substituting values:

  • x + 6 = 2x - 12
  • 2x - x = 6 +12
  • x = 18

Correct option is D. 18