sofiateresalopp2s3rw sofiateresalopp2s3rw
  • 19-01-2018
  • Mathematics
contestada

12r - 18 = 13r + 18 please help

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alitakat02 alitakat02
  • 19-01-2018
I am assuming you want to find r. r = -36
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snoh
snoh snoh
  • 19-01-2018
12r - 18 = 13r + 18
13r - 12r - 18 = 13r + 18 - 13r
-1r - 18 + 18 = 18 + 18
-r = 36
36/-1
r= -36
Answer Link

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