Ray BD bisects ∠ABC so that m∠DBC = (x + 6)° and m∠ABD = (2x – 12)°. What is x?

1 answer

Do you know what "bisect an angle" means ?
https://www.google.com/search?q=bisect+angle&ie=utf-8&oe=utf-8&client=firefox-b-1-ab
2x - 12 = x + 6
x = 18