Answer
The solution is 3.
Work Step by Step
5x-15=0
5x-15+15=0+15
5x=15
$\frac{5x}{15}$=$\frac{15}{5}$
x=3
check
5x-15=0
5*3-15=0
15-15=0
0=0
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.5 - Factoring by Special Products - Exercise Set - Page 448: 82
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