Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.3 - Formulas and Problem Solving - Exercise Set: 22

Answer

$d=\frac{L-a}{n-1}$

Work Step by Step

We are given that $L=a+(n-1)d$. We can solve for d by first subtracting a from each side. $L-a=(n-1)d$ Divide both sides by n-1. $d=\frac{L-a}{n-1}$
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