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bok1=x
bok2=x+4
2*(x+4)+2*x=32
2x+8 + 2x=32
4x=32-8
4x=24 :/4
x=6
bok1=6
bok2=6+4=10
----------------------------
sprawdzenie:
2*6+2*10=12+20=32
------------------------
wynik:
bok1=6
bok2=10