Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises - Page 668: 10

Answer

$a=9$

Work Step by Step

$a+3=12$ Subtract 3 from both sides. $a+3-3=12-3$ $a+0=9$ $a=9$
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