Answer :

Answer:

Step-by-step explanation:

AI-generated answer

Given that AB = CD and BC = DE:

1. By the addition property of equality, we add BC to both sides of the equation:

2. Using the substitution property of equality to replace BC with DE on the right side of the equation:

3. Applying the segment addition property, we get:

4. Finally, using the substitution property of equality on the equation :

Therefore, the correct answer is: .