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wiek Jurka -> x - 26
x + (x - 26) = 50
x + x - 26= 50
2x - 26= 50
2x= 50 + 26
2x= 76
x= 76 : 2
x= 38
wiek taty -> 38 lat
wiek Jurka -> 38 - 26= 12 lat
Odp. Jurek ma 12 lat.