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-3p-46=2p /+3p
5p=-46 /:5
p=-9,2
7p+3p-5p-8p-2p=18+28
-5p=46 |:-5
p=-9,2
Licze na najlepsze:).
7p+3p-5p-8p-2p=18+28
10p-15p=46
-5p=46 |:(-5)
p=-9,2