Answer
$1$
Work Step by Step
Subtract $4$ to both sides to obtain:
$3x+4-4=7-4
\\3x=3$
Divide $3$ to both sides to obtain:
$x =\frac{3}{3}
\\x=1$
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 60: 16
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