The expression \( 13x - 20 + 7x \) can be simplified by combining like terms. 

1. Combine the \( x \)-terms:
\[
13x + 7x = 20x
\]

2. The simplified expression is:
\[
20x - 20
\]

Would you like more details or have any questions?

Here are 5 related questions:
1. How would you simplify \( 15x - 5 + 3x + 10 \)?
2. What is the value of \( 20x - 20 \) when \( x = 2 \)?
3. How do you factor the expression \( 20x - 20 \)?
4. What is the result of adding \( 20x - 20 \) to \( 5x + 10 \)?
5. Can you solve \( 20x - 20 = 0 \) for \( x \)?

**Tip**: Always combine like terms (terms with the same variable) when simplifying algebraic expressions.

Learn how to simplify the algebraic expression 13x - 20 + 7x by combining like terms. This problem introduces key algebraic concepts and techniques suitable for students in Grades 6-8. Detailed step-by-step solution included.

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