Need more help! I’m not sure what I’m doing at all!

Answer:
x=14
Step-by-step explanation:
So we know that the angles of a triangle add up to 180 degrees right?
So add all of the angles together. 12x+12=180 degrees
simplfy that.
12x=168
x=14
Angle A: 68 degrees
Angle B: 56 degrees
Angle C: 56 degrees