jetblackcap jetblackcap
  • 15-08-2018
  • Mathematics
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choixongdong
choixongdong choixongdong
  • 15-08-2018

6 / (x + 6) = 10/15

10(x+6) = 90

10x + 60 = 90

10x = 30

x = 3

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