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2014-06-03T19:11:40+03:00
A+b+c=590
b=2,5a
c=3/7 (a+b)
inlocuim pe b si c in prima ecuatie ---- a+2,5a+3/(a+2,5a)=590
35a=4130---- a = 118
b= 2,5*118 ---- b= 295
c= 3/7 (118+295)
c=1239/7 =177
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