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.

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.