Answer:
x = 149
Step-by-step explanation:
Lines m and n are parallel lines as shown by the double arrows on each line.
The angles marked x and 149 deg are corresponding angles of parallel lines cut by a transversal.
Postulate:
If parallel lines are cut by a transversal, then corresponding angles are congruent.
According to the postulate above, since the angles marked 149 and x are corresponding angles, they are congruent.
x = 149
