mathharlem mathharlem
  • 24-11-2016
  • Mathematics
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sum of a number X and three is twelve

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Аноним Аноним
  • 24-11-2016
(x)+(3)=12
x=12-3
x=9............
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kturn2020
kturn2020 kturn2020
  • 24-11-2016
x+3=12
-3=-3

x=9

would be the sum of X and three is twelve
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