Hi Lexi!
I would begin by drawing for yourself a diagram of what is being described here.
The angle ∠ABC would be first. B should be at the vertex because it's the vertex in the middle.
Now place D in the interior of the angle ∠ABC such that it suggests that the ray BD will bisect ∠ABC.
This means the ray BD will divide the ∠ABC into two equal angles, one being ∠DBC and the other ∠ABD.
The measures of these two equal angles are given as m∠DBC = x + 6 and m∠ABD = 2 x - 12.
These being equal, we get the equation x + 6 = 2 x - 12.
Can you do the rest from here? Let me know if you need help with any of these steps or ones that may follow.
Thank you!
