Elementary Algebra

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

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - Chapter 1 Review Problem Set: 25

Answer

$66$

Work Step by Step

Using order of operations, the given expression, $ (19+56)+(-9) ,$ simplifies to \begin{array}{l}\require{cancel} 19+56-9 \\\\= 75-9 \\\\= 66 .\end{array}
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