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3/5x= 3
x= 3 : 3/5
x= 3 * 5/3 (skracam 3 z 3)
x= 1 * 5/1
x= 5/1
x= 5
Odp. Szukana liczba to 5.
3/5x= 6
x= 6 : 3/5
x= 6 * 5/3 (skracam 6 z 3)
x= 2 * 5/1
x= 10/1
x= 10
Odp. Szukana liczba to 10.