Hello!
Answer:

Explanation:
→ We want to find the value of x.
→ We know that AB // CE.
→ So the angles in green (see attachment) are alternate interior.
→ So the angles in green are equal.
→ We know that the sum of the angles of a triangle is equal to 180°
→ So the angle in red is equal to 180° - (28° + 104°) = 180° - 132° = 48°
→ We know that a straight angle is equal to 180°.
→ So the angle in yellow is equal to 180°.
→ So the angle x is equal to the angles yellow + red = 180° + 48° = 228°.
Conclusion:
The angle x is equal to 228°.