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Mama - 3x
Tata - 3x+2
x+3x+3x+2=93
7x+2=93
7x=91
x=13
Syn - 13 lata
Mama - 39 lat
Tata - 41 lat
y-tata
z-syn
x=3z
y=x+2
x+y+z=93
3z+3z+2+z=93
7z=93-2
7z=91 :7
z=13
x=3z
x=3*13
x=39
y=x+2
y=41
odp.mama ma 39 lat,tata41 lat a syn 13 lat
syn - x
mama - 3x
tata - 3x+2
x+3x+3x+2=93
7x+2=93
7x=93-2
7x=91/7
x=13 - syn
3*13=39 - mama
3*13+2=39+2=41 - tata
odp.tata ma 41 lat, mama 39 lat , a syn 13 lat.