Seudónimo Seudónimo
  • 19-12-2016
  • Mathematics
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The sum of twice a number and 5 is at most 15

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texaschic101
texaschic101 texaschic101
  • 19-12-2016
2n + 5 < = 15 (thats less then or equal)
2n < = 15 - 5
2n < = 10
n < = 10/2
n < = 5
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