Answer
$(f+g)(x)=5x-5$
$(f+g)(5)=20$
Work Step by Step
$(f+g)(x)=f(x)+g(x)$
$3x+1+2x-6=5x-5$
plug in x=5
$5*5-5=20$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 2 - Section 2.3 - The Algebra of Functions - Exercise Set - Page 132: 11
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