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2014-05-07T14:28:58+03:00
S+p= 37
s= 2,5 + p
2,5 + p + p = 37
2p=34,50
p= 17,25

s= 17,25 + 2.5= 19.75
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2014-05-07T14:30:55+03:00

s+p=37

s=2,5+2p

2,5+2p+p=37

3p=37-2,5=34,5

p=11,5

s=2,5+11,5.2=25,5


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