jasadez123 jasadez123
  • 23-08-2016
  • Mathematics
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i need help i dont understand

i need help i dont understand class=

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liltarzan99
liltarzan99 liltarzan99
  • 23-08-2016
I do not understand this at all. I'm not the best at math either.
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Аноним Аноним
  • 23-08-2016
r is -4/7 and s is s/7 =-4/7 + s/7
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