The result of $1 + (-7)$ is:

$1 + (-7) = -6$

Would you like any details or have questions about this?

Here are 5 related questions to expand your understanding:

1. What is the sum of $5 + (-3)$?
2. How would you subtract two negative numbers, like $-4 - (-9)$?
3. What is the result of $0 + (-8)$?
4. How do you calculate $3 + (-10)$?
5. Can you solve $2 + (-2)$?

Tip: When adding a negative number, it's equivalent to subtracting its absolute value.