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y Wero
{x=2y
{x+5+y+5=40
2y+y=30
3y = 30
y=10
x=2*10=20
y=10
y -obecny wiek Weroniki
x+5+y+5=40
2y+5+y+5=40
3y+10=40
3y=40-10
3y=30
y=10
x=2y
x=2*10
x=20
Obecnie Mateusz ma 20 lat, a Weronika 10.