Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - Mid-Chapter Review - Mixed Review: 3

Answer

$15$

Work Step by Step

$\bf{\text{Solution Outline:}}$ To evaluate the given expression, $ x+y ,$ substitute the given values $x=3$ and $y=12.$ $\bf{\text{Solution Details:}}$ Substituting $x=3$ and $y=12,$ the given expression evaluates to \begin{array}{l}\require{cancel} x+y \\\\= 3+12 \\\\= 15 .\end{array}
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