Question

If A = -3n + 2 and B = 5n - 7, what is the value of A - B, in simplest form?

Answer 1

Answer:

-8n + 9

General Formulas and Concepts:

Pre-Algebra

• Distributive Property

Algebra I

• Combining Like Terms

Step-by-step explanation:

Step 1: Define

A = -3n + 2

B = 5n - 7

A - B

Step 2: Simplify

1. Substitute:                              -3n + 2 - (5n - 7)
2. Distribute negative:               -3n + 2 - 5n + 7
3. Combine like terms (n):         -8n + 2 + 7
4. Combine like terms (Z):         -8n + 9