Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1-9 - Cumulative Review: 3

Answer

$x = \frac{23}{2}$

Work Step by Step

$6x + 5 = 2(4x- 9)$ $6x + 5 = 8x - 18$ $6x - 8x = -18 - 5$ $-2x = -23$ $2x = 23$ $x = \frac{23}{2}$ $x = 11.5$ Check: $6(\frac{23}{2}) + 5 \overset{?}{=} 2(4(\frac{23}{2})- 9)$ $\frac{138}{2} + 5 \overset{?}{=} 2(\frac{92}{2}- 9)$ $69 + 5 \overset{?}{=} 2(46- 9)$ $69 + 5 \overset{?}{=} 2(37)$ $74 = 74$
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