The expression given is:

\[
7xy - 3x + 3x - 8xy
\]

Let's simplify it step by step:

1. Combine like terms that have the same variables:
   - The terms \(7xy\) and \(-8xy\) are like terms.
   - The terms \(-3x\) and \(+3x\) are also like terms.

2. Simplify:
   - \(7xy - 8xy = -1xy\) (or simply \(-xy\))
   - \(-3x + 3x = 0\)

So, the simplified expression is:

\[
-xy
\]

Would you like more details or have any other questions?

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Here are 5 related questions to expand your understanding:

1. How would you simplify the expression \(5ab + 2a - 5ab + 4a\)?
2. Can you factor the expression \(7xy - 8xy\)?
3. What happens if you add the expression \(2xy - 3y\) to \(-xy + 3y\)?
4. How do you determine like terms in an algebraic expression?
5. What is the result of subtracting \(2xy\) from \(5xy\)?

**Tip:** When simplifying expressions, always group and combine like terms to make the process easier.

Learn how to simplify the algebraic expression 7xy - 3x + 3x - 8xy. This solution explains the process of combining like terms, covering key algebraic concepts suitable for students in Grades 6-8.

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