#### Answer

$12+4x$

#### Work Step by Step

In symbols, the phrase "$12$ increased by four times a number" translates to
\begin{array}{l}\require{cancel}
12+4x
.\end{array}

Published by
Pearson

ISBN 10:
0321969359

ISBN 13:
978-0-32196-935-4

$12+4x$

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