I will upvote and give brainliest answer

Answer:
x = 21°
Step-by-step explanation:
105°+54°=159°
180°-159°=21°
Angle BCA=Angle x
So angle x is 21°
Answer:
x = 21
Step-by-step explanation:
Angle B (54 degrees) and Angle DAB are alternate interior angles, meaning that they are congruent. So since Angle B is 54 degrees, Angle DAB is also 54 degrees.
So to find x, add 105 and 54 together:
105 + 54 = 159
Then, subtract 159 from 180 (because a straight line will always be 180):
180 - 159 = 21
So, x = 21 degrees.