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murzikaleks [220]
3 years ago
13

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

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
4 0

Answer:

-8n + 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

A = -3n + 2

B = 5n - 7

A - B

<u>Step 2: Simplify</u>

  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
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