Find the value of x given two acute angles

The video tutorial begins with an introduction to a geometry problem involving angles. The teacher explains the measures of different angles and sets up an equation to solve for X. The solution process is demonstrated, leading to the calculation of angle HMJ. The tutorial concludes with a summary of the solution.

If one angle is 90 degrees, what can you infer about the other angles in the scenario?

What is the significance of the angles combining to form the orange angle?