Question

Solve 8x + c = k for x.

Answer 1

x = (k - c)/8

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

Identify

8x + c = k

Step 2: Solve for x

1. [Subtraction Property of Equality] Subtract c on both sides: 8x = k - c
2. [Division Property of Equality] Divide 8 on both sides: x = (k - c)/8

Answer 2

`x = (k -c)/(8)`

Explanation:

`8x + c = k\\\\8x + c-c = k -c \ \ \ \ \ \ \ \ \ [\ subtract \ c \ from \ both \ sides \ ]\\\\8x = k - c\\\\(8x)/(8) = (k-c)/(8) \ \ \ \ \ [ \ divide \ both \ sides\ by\ 8 \ ]\\\\x = (k-c)/(8)`