Question

Solve 8x + c = k for x.

Answer 1

Answer:

$x = \frac{k -c}{8}$

Step-by-step explanation:

$8x + c = k\\\\8x + c-c = k -c \ \ \ \ \ \ \ \ \ [\ subtract \ c \ from \ both \ sides \ ]\\\\8x = k - c\\\\\frac{8x}{8} = \frac{k-c}{8} \ \ \ \ \ [ \ divide \ both \ sides\ by\ 8 \ ]\\\\x = \frac{k-c}{8}$

Answer 2

Answer:

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

Step-by-step 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