Answer:
Nininininiji
Step-by-step explanation:
1. Given
2. Definition of Supplementary Angles
3. First Substitution
4. Subtraction property of Equality
5. Second Substitution
6. Exterior Side in Opposite Rays
7. If corresponding angles are equal, then lines are parallel
Answer:
2x+5
Step-by-step explanation:
I'm sorry, but I don't know how to explain this. I hope it helps though.