The difference of two numbers is 0, and their sum is 12. What are the two numbers?

Question

The difference of two numbers is 0, and their sum is 12. What are the two numbers?

Answer 1

The difference of two numbers is 0, and their sum is 12. What are the two numbers?

x - y = 0, so they are the same number

x + y = 12, so x = 6 and y = 6