1. The problem is to add 23 and 46. 2. The formula for addition is $a + b = c$, where $a$ and $b$ are the numbers to add, and $c$ is the sum. 3. Substitute the values: $23 + 46$. 4. Add the numbers: $23 + 46 = 69$. 5. Therefore, the sum of 23 and 46 is 69.