Answer:
-1
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
- Subtract Property of Equality
Explanation:
Step 1: Define
6x + 4 = 7
Step 2: Solve for x
- Subtract 4 on both sides: 6x = 3
- Divide 6 on both sides: x = 3/6
- Simplify fraction: x = 1/2
Step 3: Evaluate
- Define equation: 6x - 4
- Substitute in x: 6(1/2) - 4
- Multiply: 3 - 4
- Subtract: -1