Let's solve the expression step by step:

$(3 + 15) - 8 + 16$

1. First, perform the operation inside the parentheses:

$3 + 15 = 18$

So, the expression becomes:

$18 - 8 + 16$

2. Now, subtract 8 from 18:

$18 - 8 = 10$

3. Finally, add 16 to 10:

$10 + 16 = 26$

The result is:

$\boxed{26}$

Would you like further details on any step or have additional questions?

Here are 5 related questions to practice:

1. What is $(5 + 12) - 7 + 20$?
2. Solve $(10 + 4) - 6 + 9$.
3. Simplify $(7 + 3) - 2 + 15$.
4. Calculate $(9 + 21) - 15 + 8$.
5. Find the value of $(11 + 5) - 3 + 12$.

Tip: Always solve the parentheses first before applying other operations.