College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.1 - Linear Equations - 1.1 Assess Your Understanding - Page 91: 70

Answer

-0.94

Work Step by Step

We can just put this into a calculator but let's solve this step by step. Start by adding 20-18.63x to both sides to get $-21.2/2.6+20=(14/2.32-18.63)x$ Divide both sides by $(14/2.32-18.63)$ To get $(-21.2/2.6+20)/(14/2.32-18.63)=x$ Plugging this in yields, $x=-1.09$
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