Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.7 Solving Equations with Several Steps - 9.7 Exercises - Page 679: 44



Work Step by Step

Step 1. Combine like terms on the right side of the equation. $3a+2a=(3+2)a=5a=15$ Step 2. Divide both sides by 5. $\frac{5a}{5}=\frac{15}{5}$ $a=3$
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