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 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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