Let's simplify the expression $-2(n - 9) + 4$.

1. First, distribute the $-2$ across the terms inside the parentheses: $-2(n - 9) = -2n + 18$

2. Now substitute this back into the original expression: $-2n + 18 + 4$

3. Combine the constants $18$ and $4$: $-2n + 22$

So, the simplified expression is: $-2n + 22$

Would you like more details or have any other questions?

Here are 5 related questions:

1. How do you simplify $3(n - 5) + 2$?
2. What happens if you have more than one set of parentheses, like in $2(n - 4) - 3(n + 1)$?
3. How would you solve $-2n + 22 = 0$?
4. Can you factor $-2n + 22$?
5. What would the expression look like if the constant $4$ was negative?

Tip: Always handle distribution carefully before combining like terms when simplifying expressions.