Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.2 - Simplifying Algebraic Expressions - Exercise - Page 218: 53

Answer

$$6.$$

Work Step by Step

We simplify by removing the parentheses and then combining the like terms as follows: $$ -5y + 9 - (-5y + 3) =-5y + 9 +5y - 3 \\ =6.$$
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