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Hania: x
Jaś: x-3/3
x-3+x+x-3/3=38 | •3
3x-9+3x+x-3=114
3x+3x+x=144+9+3
7x=126 | : 7
x=18 ----> wiek Hani
x-3=18-3=15 ----> wiek Ani
x-3/3=18-3/3=15/3=5 -----> wiek Jasia
3x - wiek ani
3x+3 - wiek hani
x+3x+3x+3 = 38
7x+3=38
7x=35
x=5
wiek jasia:5
wiek ani:5*3=15
wiek hani:3*5+3=15+3=18