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x---5
x=1880*5/1,5
x=6266(6)
x------5
x=1880×5=9400
9400÷1.5=6266,6666666666666
5 min. - x ściegów
1,5x=9400/:1,5
x=6266,(6)
Myślę, że pomogłam ;)
Pozdrawiam ;*