Answer:
x = -4/3
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
Explanation:
Step 1: Define
Identify
3(x + 4) - 1 = 7
Step 2: Solve for x
- [Addition Property of Equality] Add 1 on both sides: 3(x + 4) = 8
- [Division Property of Equality] Divide 3 on both sides: x + 4 = 8/3
- [Subtraction Property of Equality] Subtract 4 on both sides: x = -4/3