Answer
$3n$
Work Step by Step
$n$ = the middle integer
$n-1$ = the first integer
$n+1$ = the last integer
Thus the sum is:
$(n-1)+n+(n+1)=3n$
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.9 - Modeling with Equations - P.9 Exercises - Page 70: 8
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