Question

What number does x stand for in this equation?

Answer 1

Answer:

C. -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right  

Equality Properties

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

-7x + 6 = 27

Step 2: Solve for x

1. [Subtraction Property of Equality] Subtract 6 on both sides:                        -7x = 21
2. [Division Property of Equality] Divide -7 on both sides:                                 x = -3