Answer:
m∠X = 135 degrees ( ° )
Explanation:
If we were to horizontally turn this picture over, it would be that angles T and X are each alternate interior angles, provided it lies on a transversal.
It is known that alternate interior angles area congruent, such that:
m∠T = m∠X ⇒ m∠X = 135 degrees ( ° )