Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.1 - Linear Equations in One Variable - Exercise Set: 75

Answer

$x=-.24$

Work Step by Step

We are given the equation $9x+1.6=4x+.4$. In the next step, this equation is incorrectly simplified to $5x=1.2$. The correct way to simplify the equation is to first subtract 4x from both sides. $5x+1.6=.4$ And then subtract 1.6 from both sides. $5x=-1.2$ Divide both sides by 5. $x=-.24$
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