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Find number abc

If 6a777 - bb827 = 57a5c find number abc. Multiple solutions may exist.

Correct answers: 1

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Pluto photographed

In 1930, Clyde Tombaugh photographed the planet Pluto, the only planet discovered in the twentieth century, after a systematic search instigated by the predictions of other astronomers. Tombaugh was 24 years old when he made this discovery at Lowell Observatory in Flagstaff, Ariz.

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