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2014-05-09T17:32:14+03:00
X- initial
x+5x/100=A - pop din primul an
A+2A/100=19278
100A+2A=1927800
102A=1927800
A=18900

x+5x/100=18900
100x+5x=1890000
105x=1890000
x=18000

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