chellekoelsch chellekoelsch
  • 27-04-2016
  • Mathematics
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Six plus four fifths A equals nine tenths A

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apologiabiology
apologiabiology apologiabiology
  • 27-04-2016
6+4/5a=9/10a
make bottom numbers same
into 10
60/10+8/10a=9/10a
minus 8/10a from both sides
60/10=1/10a
multiply both sides by 10
60=a
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