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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Vika11
Vika11
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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