Final answer:
The question involves finding the value of x given expressions for two angles, but without additional context such as the relationship between the angles, it is not possible to provide a solution.
Step-by-step explanation:
The calculation appears to incorrectly combine unrelated mathematical notations and contexts, therefore the student's question, which involves finding the value of x given two angle expressions, cannot be solved with the provided information. In standard problems involving angles, the information would typically include a relationship between the two angles such as them being supplementary, complementary, or forming a certain type of polygon.
To find the value of x, typically one would set up an equation based on the relationship between angles C and D. For instance, if ∡C and ∡D were supplementary, the equation would be (3x - 44) + (5x - 20) = 180 degrees. Without further contextual information regarding the relationship between the angles, a definitive solution cannot be provided.