Applying vertical angles and same side interior to solve for x ex 12

The video tutorial explains how to solve for a missing variable X using angle relationships in parallel lines and a transversal. It covers identifying vertical angles, linear pairs, and supplementary angles, and demonstrates solving for X using two methods: same side interior angles and alternate interior angles.

What are alternate interior angles and how do they relate to the angles in the problem?

Summarize the two different methods used to solve for X in the problem.