kiki7448
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  • 25-08-2019
  • Mathematics
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I need help with number 15 plz

I need help with number 15 plz class=

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Аноним Аноним
  • 25-08-2019

Answer:

1.5n+2n=10.5

3.5n=10.5

n=10.5/3.5

n=3

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