Answer:
66
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS 
- Brackets 
 - Parenthesis 
 - Exponents 
 - Multiplication 
 - Division 
 - Addition 
 - Subtraction 
 
Explanation:
Step 1: Define Expression
82 - 6(7 - 4) + 2
Step 2: Evaluate
- (Parenthesis) Subtract: 82 - 6(3) + 2
 - Multiplication: 82 - 18 + 2
 - Subtraction: 64 + 2
 - Addition: 66