The problem is to calculate the sum of $5 + 5 + 5$.

1. Problem Description

The problem is to calculate the sum of $5 + 5 + 5$.

2. Solution Steps

The problem requires adding three numbers, each equal to $5$.

We can proceed with the addition step-by-step:

First, add the first two numbers: $5 + 5 = 10$.

Then, add the result to the third number: $10 + 5 = 15$.

3. Final Answer

The final answer is 15.