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2/3x +2/3 = x
2/3=1/3x
2=x
kalafior wazy dwa kilo
Obliczenia :
2/3 ? +2/3 = ?
2/3 = 1/3?
? = 2kg
Wiec : Kalafior wazy 2 kg.
2/3x +2/3=x
2/3=1/3x |*3
x=2kg