Answer:
-a + 15
General Formulas and Concepts:
Pre-Algebra
Algebra I
Explanation:
Step 1: Define
3(a + 5) - 2(a + a)
Step 2: Simplify
- Combine like terms: 3(a + 5) - 2(2a)
- Distribute 3: 3a + 15 - 2(2a)
- Multiply: 3a + 15 - 4a
- Combine like terms: -a + 15