The expression $(+6) + (-6)$ equals $0$.

Here's how it works:

• $+6$ is a positive number.
• $-6$ is a negative number.
• When you add a positive number to its corresponding negative number, the result is zero.

So, $(+6) + (-6) = 0$.

Would you like more details or have any questions?

Here are 8 related questions:

1. What is the result of $(+10) + (-4)$?
2. How do you add two negative numbers?
3. What happens when you add two positive numbers?
4. What is the result of $(-7) + (-3)$?
5. How do you subtract a negative number from a positive number?
6. What is the result of $15 + (-15)$?
7. How do you represent subtraction as adding a negative?
8. What is the result of $(-8) + (8)$?

Tip: When adding numbers with different signs, subtract the smaller absolute value from the larger absolute value, and keep the sign of the larger absolute value.