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2014-05-24T20:23:16+03:00
A+m=52
(a-2)=1/3 *(m-2)
a-2= (m-2)/3
a=(m-2)/3+2

(m-2)/3 +2 +m=52  aducem la acelasi numitor
m-2 +6+3m=156
4m+4=156
4m=156-4
4m=152
m=38

a=52-38
a=14
1 5 1