Someone give me the correct statement of this proof

Question

Given: AD≅AE and DB≅EC.

Prove: ∠B≅∠C. A

All givens are used in step 1!!!!!

diagram hint :

EFC forms triangle. E D

DFB forms triangle

F is the intersection point of EB and DC

ADEF connects form quadrilateral F

also, this diagram is horizontal tilted to the left

but I don’t know how to do that so I made it vertical!

I hope these help. C B

Answer 1

Then AE + EC = AD + DB by addition property of equality

So AC = AE + EC = AD + DB = AB by substitution/transitive.

Then triangle is CAB is an isosceles triangle.

The base angles of the isosceles triangle are congruent.

angle C = angle B