Question 13
In the diagram below, ABC is an isosceles triangle with $AB=AC$, $\angle BAC=2x$, $AE=AC$ and $\angle CAE=\angle BAC$. Triangle BCD is also isosceles with $BC=BD$ and $\angle CBD=2x+18$. If $\angle CDE=x$ and $\angle DCE=9x-3$, what is the measure, in degrees, of $\angle CED$?
