I’m not sure how to solve this problem, it talks about angle pairs and I’m new to this do you know the answer?

For the given figure, we will find the relations between the angles:
[tex]\angle CEA\text{ and }\angle DEB\text{ }[/tex]As shown the angles are vertical
[tex]\angle\text{AED and }\angle BED[/tex]
As shown the angles are adjacent and the sum of them = 180
so, the angles are adjacent supplementary