Answer
Brenda spent $42 dollars.
Work Step by Step
Let $x = $ amount of money Brenda spent
$2x - 3 = 81$
$2x = 84$
$x = \frac{84}{2}$
$x = 42$ dollars
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.8 Using Equations to Solve Application Problems - 9.8 Exercises - Page 688: 37
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