To solve the expression $3 - (-8)$, we need to subtract $-8$ from 3.

Subtracting a negative number is equivalent to adding its positive counterpart. Thus:

$3 - (-8) = 3 + 8$

Now, perform the addition:

$3 + 8 = 11$

So, $3 - (-8) = 11$.

Would you like more details or have any questions?

Here are 5 related questions to expand on this topic:

1. What is the result of $-5 - (-3)$?
2. How do you solve $7 - (-4) + 2$?
3. What is $-6 + (-9)$?
4. If $x = -8$, what is $5 - x$?
5. How do you interpret subtraction of a negative number on a number line?

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