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torba-b
plecak-c
a+b+c=610
a+b=440
b+c=330
440+c=610⇒c=170
a+b=440
b+170=330⇒b=160
c=170
a+160=440
b=160
c=170
a=280
b=160
Odp. Walizka 280zł, torba 160zł, plecak 170