Answer
$-7$
Work Step by Step
By combining like terms, we have
$$
4 - 2x = 18\Longrightarrow - 2x = 14 \Longrightarrow x=-\frac{14}{2}=-7
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 12 - Cumulative Review - Page 446: 7
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