Answer:

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

Step-by-step 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