lorvenskyv01 lorvenskyv01
  • 03-11-2017
  • Mathematics
contestada

two times a number added to another number is 25. three times the first minus the other number is 20

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elephant10 elephant10
  • 03-11-2017
the answer is 2 times a number (nine) added to another number (seven) is 25. so 2x9+7=25 and 3 times 9 minus 7 is 20 :) 
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