The expression $3 - (-6)$ can be solved as follows:

When you subtract a negative number, it's equivalent to adding the positive version of that number. Therefore:

$3 - (-6) = 3 + 6 = 9$

So, the answer is $9$.

Would you like more details or have any questions?

Here are 5 related questions:

1. What is $7 - (-4)$?
2. How do you solve $5 - (-3)$?
3. What is the result of $10 - (-8)$?
4. How do you approach $12 - (-7)$?
5. Can you solve $2 - (-5)$?

Tip: Remember, subtracting a negative number is the same as adding its positive counterpart.