Answer
(a) false
(b) true
Work Step by Step
(a) Using $x=-2$:
$4(-2)+7=9(-2)-3$
$-8+7=-18-3$
$-1=-21$
Which is False.
(b) Using $x=2$:
4(2)+7=9(2)-3
8+7=18-3
15=15
Which is True.
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Section P.8 - Solving Basic Equations - P.8 Exercises - Page 59: 7
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