Answer
a) $3$
b) $3$
c) $0$
Work Step by Step
a) $k-5=-k+1$
$2k=6$
$k=3$
b)$3+k-5=k-k+1$
$k-2=1$
$k=3$
c)$6+k-5=2k-k+1$
$k+1=k+1$
$k=0$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.5 - Equations - 1.5 Exercises - Page 58: 138
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