Jameadcmartine Jameadcmartine
  • 22-10-2016
  • Mathematics
contestada

15 is equal to the difference of 7 and 2 times a number

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SJ2006
SJ2006 SJ2006
  • 22-10-2016

Let, the number = x

15 = 7-2x

2x = 7-15

2x = -8

x = -4

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