Determine the values of two angles that lie on a lie with a third angle

The video tutorial focuses on determining the measures of angles 5 and 6, which are equal. The teacher explains the properties of angles, such as right and straight angles, and sets up an equation to solve for the angles' measures. By substituting variables, the teacher demonstrates how to solve the equation, concluding that both angles measure 45 degrees. The tutorial emphasizes the importance of writing down known information and addresses common student mistakes.

Why is it important to write down an equation when solving for angles?

What equation can be formed to find the measures of angle 5 and angle 6?