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 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set: 69

Answer

$x=-\dfrac{5}{2}$

Work Step by Step

Using the properties of equality, the solution to the given equation, $ -8.2x=20.5 $, is \begin{array}{l}\require{cancel} \dfrac{-8.2x}{-8.2}=\dfrac{20.5}{-8.2} \\\\ x=\dfrac{\cancel{4.1}\cdot5}{\cancel{4.1}\cdot(-2)} \\\\ x=-\dfrac{5}{2} .\end{array}
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