Answer:
y = 3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Algebra I
Explanation:
Step 1: Define
Identify
y + 3 = -y + 9
Step 2: Solve for y
- [Addition Property of Equality] Add y on both sides: 2y + 3 = 9
- [Subtraction Property of Equality] Subtract 3 on both sides: 2y = 6
- [Division Property of Equality] Divide 2 on both sides: y = 3