Question

Solve for x in the literal equation −4 = xy + z.

Answer 1

x = (-4 - z)/y

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
• Subtract Property of Equality

Explanation:

Step 1: Define

-4 = xy + z

Step 2: Solve for x

1. Subtract z on both sides: -4 - z = xy
2. Divide y on both sides: (-4 - z)/y = x
3. Rewrite: x = (-4 - z)/y