#### Answer

$3(12-x)$

#### Work Step by Step

The difference of 12 and a number $x$ is represented as $12-x$. Three times that would be $3(12-x)$.

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

$3(12-x)$

The difference of 12 and a number $x$ is represented as $12-x$. Three times that would be $3(12-x)$.

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