please try this

In a triangle ABC, from point C, line segment CD is drawn on to AB such that  ∠ACD is 50°and ∠BCD is 30°. Similarly from point A, line segment AE is drawn on to BC such that ∠BAE is 20° and ∠CAE is 60°. Now join points D and E. Find the value of ∠AED in degrees?