Question

Solve for x 3x -y =12

Answer 1

x = y + 12 / 3

Explanation:

3x - y =12

3x = y + 12

x = y + 12 / 3

Answer 2

`\displaystyle x= (y + 12)/(3)`

General Formulas and Concepts:

Pre-Algebra

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

Identify

`\displaystyle 3x - y = 12`

Step 2: Solve for x

1. [Addition Property of Equality] Add y on both sides:
   `\displaystyle 3x = 12 + y`
2. [Division Property of Equality] Divide 3 on both sides:
   `\displaystyle x = (12 + y)/(3)`