EC bisects ∠BED, m ∠AEB = 11x-12 and m ∠CED = 4x+1. Find m ∠AEC
Since EC bisects angle BED, angle AEC and angle CED are vertical angles and have the same measure.
Therefore, m angle AEC = m angle CED = 4x+1. Answer: \boxed{4x+1}.
Therefore, m angle AEC = m angle CED = 4x+1. Answer: \boxed{4x+1}.