Answer:

General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Algebra I
Explanation:
Step 1: Define

Step 2: Simplify
- Combine fractions:

- Distribute -1:

- Combine like terms:
