New version:
What is angle AED?
In a triangle ABC, angle A=80, B=80, C=20. D is on line AC and E is on line BC. Angle DBC is 40 and CAE is 30.

(Original version:
What is angle AED?
In a triangle ABC, angle A=80, B=80, C=20. D is on line AC and E is on line BC. Angle DBC is 20 and CAE is 10. )