What are the steps to solve this algebraic expression?$15 less than the average cost, C.

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter3: Math Models
Section3.1: Use A Problem-solving Strategy
Problem 64E: When you start to solve a word problem, how do you decide what to let the variable represent?
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What are the steps to solve this algebraic expression?
$15 less than the average cost, C.

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