Answer
$-7x+28y$
Work Step by Step
RECALL:
The distributive property states that for any real numbers $a, , $ and $c$,
$a(b-c) = ab-bc$
Use the distributive property to have:
$-7(x-4y)
\\=-7(x) -(-7)4y)
\\=-7x-(-28y)
\\=-7x+28y$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.2 Real Numbers and Their Properties - R.2 Exercises - Page 19: 10
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