1. The problem is to evaluate the expression $5 + 5$. 2. The formula used here is simple addition: $a + b = c$ where $a$ and $b$ are numbers. 3. Adding the two numbers: $5 + 5 = 10$. 4. The word "patata" is not a mathematical term and does not affect the calculation. 5. Therefore, the final answer is $10$.