The expression $(+6) + (-6)$ is mathematically the same as the previous one, where a positive number is added to its corresponding negative number. The parentheses around $-6$ are just another way to write it, but they do not change the operation.

$(+6) + (-6) = 0$

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

Would you like more details or have any questions?

Here are 8 related questions:

1. What is the result of $(+8) + (-3)$?
2. How do you simplify expressions with multiple signs?
3. What is the result of $(-5) + (-2)$?
4. How do you add numbers with different signs?
5. What happens when you add zero to a number?
6. What is the result of $7 + (-7)$?
7. How do you handle subtraction of positive and negative numbers?
8. What is the result of $3 - 3$?

Tip: When working with expressions that involve parentheses and different signs, carefully follow the order of operations to avoid mistakes.