Find number abc
If 9ac6a - 20ab5 = bc889 find number abc. Multiple solutions may exist.Correct answers: 42
The first user who solved this task is Djordje Timotijevic.
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RadiumIn 1902, Pierre and Marie Curie isolated one gram of radium, the first sample of the radioactive element. They had refined it from eight tons of pitchblende ore. |