Let's simplify the expression: 

\[
-7a + 2b + 6b - 2a
\]

### Step 1: Combine like terms for \( a \):
\[
-7a - 2a = -9a
\]

### Step 2: Combine like terms for \( b \):
\[
2b + 6b = 8b
\]

### Final simplified expression:
\[
-9a + 8b
\]

Would you like more details or have any questions? Here are some related questions for further practice:

1. Simplify: \( -3x + 5y + 4x - 2y \).
2. Simplify: \( 9m - 4n + 3m + 2n \).
3. Factor: \( 6a^2b + 3ab \).
4. Expand: \( (2a - 5b)(a + 3b) \).
5. Simplify: \( 12x - 7x + 5 - 3 \).

**Tip:** Always group and combine like terms to simplify expressions effectively!

Learn how to simplify the algebraic expression -7a + 2b + 6b - 2a by combining like terms. This step-by-step guide helps students understand core algebraic concepts and is perfect for learners in Grades 6-8.

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