milanjones2006 milanjones2006

24-03-2017
Mathematics

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how can 9+3 =12 help you solve 12-9?

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Аноним Аноним

24-03-2017

9+3=12, 12-9=3, since those three numbers are in the first equation.

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24-03-2017

Well you know that 9+3=12 so you can reverse it and do 12-9=3 .Because 3 is the only one left in the equation of 9+3=12.

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