hellomathsolver hellomathsolver
  • 03-07-2018
  • Mathematics
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twice the difference of 7 and a number is 4 times the number

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altavistard
altavistard altavistard
  • 09-07-2018
Let the number be n.

Then 2(7-n) = 4n, or 14 - 2n = 4n, or 14 = 6n.  Then n = 7/3 (answer)
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