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Find number abc

If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist.

Correct answers: 0

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My door was ajar, so...

“My door was ajar, so I added jelly, now it's a door jam.”

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Vladimir Veksler

Born 4 Mar 1907; died 23 Sep 1966 at age 59.Soviet physicist.

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