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: 64

Answer

$37$

Work Step by Step

Substituting $x= -2 ,$ the given expression, $ 7(x+6)-9(x+1) ,$ evaluates to \begin{array}{l}\require{cancel} 7(-2+6)-9(-2+1) \\\\= 7(4)-9(-1) \\\\= 28+9 \\\\= 37 .\end{array}
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