jeffersonrufusp07kcr jeffersonrufusp07kcr
  • 30-11-2017
  • Mathematics
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forty-eight decreased by a number is the same as the difference of four times the number and seven find the number

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Аноним Аноним
  • 30-11-2017
48-x=(4x)-7
+7           +7
-------------------
55-x=4x
     +x +x
-------------------
55 = 5x
x = 55/5
  x=11

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