Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.3 - Real Numbers and Algebraic Expressions - Problem Set 2.3: 41

Answer

7.2

Work Step by Step

In order to follow order of operations, we perform addition and subtraction starting on the left and going right: $16.5-18.7+9.4$ =$(16.5-18.7)+9.4$ =$(-2.2)+9.4$ =$+7.2$
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