The image provided appears to show a geometry problem, involving lines and angles. There is a figure with points labeled $A$, $B$, $C$, $D$, and $E$, and a few angles are marked. I can see some notation:

1. $\angle ABC = 30^\circ$
2. There seems to be a mention of finding $\angle D$ (possibly $\angle DCE$) or the unknown angle involving lines intersecting at $C$.

However, I need more clarification on what exactly you're looking to solve. Could you confirm if you're trying to:

1. Find the value of $\angle DCE$?
2. Solve for any other angles in the diagram?
3. Apply any theorems like alternate angles, corresponding angles, or triangle properties?

Please let me know so I can guide you properly!

Do you want more details on angle properties, or have specific questions? Here's a list of related questions that might be helpful:

1. What is the sum of angles in a triangle?
2. How are alternate interior angles formed in parallel lines?
3. What are corresponding angles, and how do they relate to parallel lines?
4. How do we apply the angle sum property in quadrilaterals?
5. How can we calculate unknown angles using adjacent angles?

Tip: When dealing with geometric diagrams, try marking all known angles and extending lines if needed for better clarity.