robertv24 robertv24
  • 14-09-2016
  • Mathematics
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a first number plus twice a second number is 4. twice the first number plus the second totals 11.

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Crix
Crix Crix
  • 14-09-2016
The first number is 6
The second number is -1
6+(-2)=4
6*2=12 12+(-1)=11
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