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e- wiek ewy
o -wiek oli
(1) a+e+o=44
(2) a=2*e
(3) o=e-4
podstawiajac (2) i (3) do (1)
2e+e+e-4=44
3e=48 /:3
e=16
(2) a=2*16=32
(3) o=16-4=12