1. The problem is to find the sum of 2025 and 42. 2. The formula for addition is simply $a + b = c$, where $a$ and $b$ are the numbers to add. 3. Substitute the values: $2025 + 42$. 4. Perform the addition: $2025 + 42 = 2067$. 5. Therefore, the final answer is $2067$.