Answer
1
Work Step by Step
This is the classic one variable one equation solve just written a different way! Just plug in 3 as $f(x)$ and we get $3 = 5 - 2x$. To solve, subtract 5 from each side and then divide by negative 2. We get $x=1$
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 2 - Section 2.8 - One-to-One Functions and Their Inverses - 2.8 Exercises - Page 226: 27
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