Question

What is the value of x in the equation -2/5x -2 =18

Answer 1

x = -50

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

Algebra I

• Terms/Coefficients

Explanation:

Step 1: Define

-2/5x - 2 = 18

Step 2: Solve for x

1. [Addition Property of Equality] Add 2 on both sides: -2/5x = 20
2. [Division Property of Equality] Divide -2/5 on both sides: x = -50