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: 55

Answer

$-59$

Work Step by Step

Substituting $x= -7 $ and $y= -3 $, the given expression, $ 5x+8y ,$ evaluates to \begin{array}{l}\require{cancel} 5(-7)+8(-3) \\\\= -35-24 \\\\= -59 .\end{array}
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