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y-cena kubka
3x+3y=24 /:3
2y+5x=25
x+y=8
2y+5x=25
x=8-y
2y+40-5y=25
x=8-y
-3y=-15/:(-3)
x=8-y
y=5
x=3
y=5
y-cena kubka
3x+3y=24 /:3
2y+5x=25
x+y=8
2y+5x=25
x=8-y
2y+40-5y=25
x=8-y
-3y=-15/:(-3)
x=8-y
y=5
x=3
y=5