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x- wiek Zuzanny
y-wiek córki
x-6=3(y-6)
x+4=2(y+4)
x-6=3y-18
x+4=2y+8
x-3y=-18+6
x-2y=8-4
x-3y=-6
x-2y=4
x=-6+3y -6+3y-2y=4
x-2y=4 y=4+6
y=10
x=-6+3y x=-6+(3*10)
y=10 x=6+30
x=36
x=36
y=10
odp Zuzanna - 36lat
córka - 10lat