Answers

2016-02-25T20:14:46+05:30
Let the no. added be x
5+x/9+x = 7+x/12+x
60+5x+12x+x*x = 63+9x+7x+x*x
17x-16x = 63-60
X = 3
So 3 should be added to each of the numbers.
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