angelinadrisco angelinadrisco
  • 19-10-2017
  • Mathematics
contestada

7 + 5r + 3 + 5 = 1 + 7r

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lillavagirl14
lillavagirl14 lillavagirl14
  • 19-10-2017
7+5r+3+5=1+7r
15+5r=1+7r
-5r=-5r
15=1+2r
-1=-1
14=2r
7=r
Answer Link
ellamarkham818 ellamarkham818
  • 19-10-2017
7+5r+3+5=1+ 7r
15+5r=1+7r
14=2r
r=7
Answer Link

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