#### Answer

$-25$

#### Work Step by Step

The things being added have the same signs, so add the absolute values. The sum has the same sign as the original addends.
Thus,
$(-12)+(-13)
\\=-(|-12|+|-13|)
\\= -(12+13)
\\=-25$

Published by
Cengage Learning

ISBN 10:
1285194055

ISBN 13:
978-1-28519-405-9

$-25$

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