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: .