The answer is:

$5 + 5 = 10$

Would you like additional details or have any questions?

Here are some related questions:

1. What is $10 + 10$?
2. How do we solve $5 + x = 10$?
3. What is $5 \times 5$?
4. How does addition work with negative numbers, such as $-5 + 5$?
5. How would we represent $5 + 5$ on a number line?

Tip: Remember, addition is commutative, so $a + b = b + a$.