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 - 2.2 Using the Principles Together - 2.2 Exercise Set: 36

Answer

$a=-\dfrac{21}{4}$

Work Step by Step

Using the properties of equality, the solution to the given equation, $ -\dfrac{8a}{7}-2=4 $, is \begin{array}{l} -\dfrac{8a}{7}=4+2 \\\\ -\dfrac{8a}{7}=6 \\\\ a=6\cdot\dfrac{-7}{8} \\\\ a=-\dfrac{42}{8} \\\\ a=-\dfrac{21}{4} .\end{array}
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