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3x+5=41
3x=41-5
3x=36
x=12
Bilet ulgowy wynosi 12zł, a normalny 17.
x + 5 - bilet normalny
2x + x + 5 = 41
3x = 36
x = 12
bilet ulgowy : 12 zł
bilet normalny: 17 zł