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It appears that the image you've uploaded contains a worksheet about simplifying algebraic expressions by combining like terms. I'll extract and explain the key elements from the image for you:

### Key Concepts from the Worksheet:
1. **Terms:**
   - **Definition:** Quantities that you add together to form an algebraic expression are called terms.
   - **Example:** The expression `4n + 6b - 8` consists of three terms: \(4n\), \(6b\), and \(-8\).

2. **Like Terms:**
   - **Definition:** Terms with the same variable raised to the same power.
   - **Properties:** You can add or subtract like terms.
   - **Example of Combining:** If you have \(5n + 3n\), you can combine them to get \(8n\), since both terms involve \(n\).

3. **Combining Like Terms:**
   - You can **combine** terms using addition and subtraction, following the addition rules (commutative and associative).
   - **Example:** In the expression \(5n + 3n\), combine the \(n\)-terms to get \(8n\).

4. **Unlike Terms:**
   - **Definition:** Terms whose variables are not the same or are raised to different powers.
   - **Properties:** You **cannot** add or subtract unlike terms.
   - **Example:** You cannot combine \(4n\) and \(6b\) because they have different variables.

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Would you like further details on any of these points or some related examples? Here are five related questions you could explore next:

1. How do you simplify an expression like \(3x + 4y + 5x\)?
2. What are the rules for combining like terms with exponents?
3. How do you deal with negative signs when combining terms?
4. Can terms like \(3x^2\) and \(5x\) be combined? Why or why not?
5. How do distributive property and like terms interact in simplifying expressions?

**Tip:** Always group like terms first before simplifying any algebraic expression to avoid confusion.

Simplifying algebraic expressions by combining like terms.

Learn how to simplify algebraic expressions by identifying and combining like terms. Understand the difference between like and unlike terms through practical examples, suitable for students in Grades 6-8.

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