Hi everyone, I hope I have this in the right section.

So, obviously, I've got this problem and I just can't figure it out. (I swear to God I'm a retard when it comes to math; have been since like, 8th grade.)

Given circle with centre O with DE tangent at B.

Find the measure of x.

I did my best to draw out the diagram...I hope it's readable.

Anyways, any help would be loved.

Thanks so much.