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po 14 latach ojciec ma 48lat a syn 16!
więc jest 3 razy starszy bo 3 x 16=48.
y-wiek syna
x+y=36 x=36-y
x+14=3(y+14)
x+14=3y+42
x-3y=42-14
x-3y=28
36-y-3y=28
-4y=-8 |:(-4)
y=2
x=36-2
x=34
:)