The expression given is:

\[
8 - (4 - 2) - (7 - 9) \times 9
\]

Let's break it down step by step:

1. First, solve the operations inside the parentheses:

   - \( (4 - 2) = 2 \)
   - \( (7 - 9) = -2 \)

2. Substitute these values back into the expression:

\[
8 - 2 - (-2) \times 9
\]

3. Next, perform the multiplication:

\[
(-2) \times 9 = -18
\]

Now the expression is:

\[
8 - 2 - (-18)
\]

4. Simplify by dealing with the subtraction:

\[
8 - 2 + 18
\]

5. Finally, add and subtract the values:

\[
6 + 18 = 24
\]

So, the value of the expression is **24**.

Would you like further details or have any questions?

Here are 8 related questions for practice:
1. Simplify the expression: \( 10 - (3 + 4) + 2 \times 5 \).
2. Evaluate \( 15 - (6 - 2 \times 3) + 4 \).
3. Simplify \( (12 - 4) \times (7 - 3) \).
4. Solve \( 9 - 3 \times (5 + 2) \).
5. Simplify \( 20 - (8 - 3) \times 2 + 4 \).
6. Evaluate \( 14 - 2 \times (5 + 3) \).
7. Simplify \( 10 - (6 + 4) \times 2 \).
8. Solve \( 18 - 3 \times (4 - 1) + 5 \).

**Tip:** Always solve operations inside parentheses first, then proceed with multiplication/division before addition/subtraction.

Learn how to simplify the arithmetic expression 8 - (4 - 2) - (7 - 9) * 9 step-by-step. This problem involves basic arithmetic operations with parentheses, subtraction, and multiplication. Suitable for students in Grades 7-9.

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