#### Answer

$-2x+3y-z-4w-4r+s$

#### Work Step by Step

To remove parentheses when preceded by a minus sign you must change the sign of each term within the parentheses and drop the leading minus sign.

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Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

$-2x+3y-z-4w-4r+s$

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