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3 + 2 = 5
5*5 = 25
25 *5 = 125
25(x+2)=125
25x + 50=125
25x=75
x=3
odp.: Marta pomyślała sobie liczbę 3.
((k+2)razy 5)razy 5= 125
25k+50=125
25k=75
k=3
Podstawiamy za k trójke i mamy:
((3+2)5)5=125
(5 razy 5)5=125
25 razy 5 = 125
125 = 125
L=P