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: 62

Answer

$32$

Work Step by Step

Substituting $x= -4 $ and $y= 3 $, the given expression, $ 3x+7y-5x+y ,$ evaluates to \begin{array}{l}\require{cancel} 3(-4)+7(3)-5(-4)+3 \\\\= -12+21+20+3 \\\\= 9+20+3 \\\\= 29+3 \\\\= 32 .\end{array}
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