150- Pieniądze Bartka
cena mazaka - x
cena klaser -2x
cena kalkulatora- 2 * 3x=6x
6x+2x+x=9x
150-11,40=138,60
138,60=9x
x=15.4
cena mazaka - 15,40
cena klaser -30,80
cena kalkulator-92,40
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150- Pieniądze Bartka
cena mazaka - x
cena klaser -2x
cena kalkulatora- 2 * 3x=6x
6x+2x+x=9x
150-11,40=138,60
138,60=9x
x=15.4
cena mazaka - 15,40
cena klaser -30,80
cena kalkulator-92,40