Answer:
x = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Distributive Property
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Algebra I
Explanation:
Step 1: Define
3(x + 5) = 5x + 7
Step 2: Solve for x
- [Distributive Property] Distribute 3: 3x + 15 = 5x + 7
- [Subtraction Property of Equality] Subtract 3x on both sides: 15 = 2x + 7
- [Subtraction Property of Equality] Subtract 7 on both sides: 8 = 2x
- [Division Property of Equality] Divide 2 on both sides: 4 = x
- Rewrite: x = 4