Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 2 - Review: 131

Answer

$-21$

Work Step by Step

$n-9=-30$ $\longrightarrow$addition property of equality $n-9+9=-30+9$ $\longrightarrow$combine like terms $n=-21$
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