#### Answer

$12x$

#### Work Step by Step

Simplify using the distributive property to obtain:
$=(7+5)x
\\=12x$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$12x$

Simplify using the distributive property to obtain:
$=(7+5)x
\\=12x$

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