Let's simplify the expression:

\[
8 - (2x + 9)
\]

Distribute the negative sign to both terms inside the parentheses:

\[
8 - 2x - 9
\]

Now, combine the constants (8 and -9):

\[
-2x - 1
\]

So, the simplified expression is:

\[
-2x - 1
\]

Would you like more details or have any other questions? 

Here are 5 related questions:
1. How do you solve for \( x \) in \( -2x - 1 = 0 \)?
2. How do you factor an expression like \( -2x - 1 \)?
3. What is the solution to \( 8 - (2x + 9) = 0 \)?
4. How can you apply this kind of simplification to a quadratic equation?
5. How does the distributive property work in equations like this?

Tip: When you encounter parentheses with a negative sign, remember to distribute the negative sign to each term inside the parentheses before simplifying.

Learn how to simplify the expression 8 - (2x + 9) step-by-step. This problem focuses on using the distributive property to simplify algebraic expressions. Suitable for students in Grades 7-8.

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