Answer
-19
Work Step by Step
To evaluate $2-7x$ when x=3, plug in 3 for x.
$2-7(3)$
Multiply.
$2-(21)$
Subtract.
$-19$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Review - Page 727: 10
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