Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-8 Geometric Sequences - Practice and Problem-Solving Exercises - Page 472: 64

Answer

$a=\frac{35}{4}$

Work Step by Step

We are given: $5(a-3)=20+a$ $5a-15=20+a$ $4a=35$ $a=\frac{35}{4}$
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