The expression given is:

\[ n + 7 - 20 \]

We can simplify this by combining the constants:

\[ n + (7 - 20) = n - 13 \]

So, the simplified expression is:

\[ n - 13 \]

Would you like more details, or do you have any questions? Here are five related questions to consider:

1. What happens if we substitute a value for \( n \) in the expression \( n - 13 \)?
2. How do you solve equations like \( n - 13 = 0 \)?
3. What are like terms, and why were \( 7 \) and \( -20 \) combined in the expression?
4. Can you extend the problem by including a variable with the constant?
5. How do you approach simplifying algebraic expressions with multiple variables?

**Tip:** When simplifying expressions, always combine like terms (constants with constants and variables with variables) to make calculations easier.

Learn how to simplify the expression n + 7 - 20 step-by-step. This problem covers basic algebraic concepts, including simplifying expressions by combining like terms. Suitable for students in Grades 6-8.

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