Find number abc
If 759ab - cc620 = ababb find number abc. Multiple solutions may exist.Correct answers: 27
The first user who solved this task is Nílton Corrêa de Sousa.
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Hot air balloon ascentIn 1709, first known ascent in a hot-air balloon was made in Portugal by Father Bartolomeu de Gusmão - indoors - as a demonstration before the Portuguese court.«* |