The expression "(2 + 3) + 4" represents a mathematical operation involving addition. First, we calculate the sum inside the parentheses: 2 plus 3 equals 5. This step simplifies the expression to 5 + 4. Next, we add 5 and 4 together. The result of this addition is 9. Therefore, the final answer to the expression "(2 + 3) + 4" is 9. This demonstrates the associative property of addition, which states that the way numbers are grouped does not change the sum.