makaylareed7ougaa3 makaylareed7ougaa3

25-08-2017
Mathematics

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-3|r+4|=-21 need help for a friend

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alybsinger alybsinger

25-08-2017

-3|r+4|=-21
|r+4|=7
R+4=7 or r+4=-7
r=3 or r=-11

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