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Find number abc

If c9ac8 - 11288 = 2815b find number abc. Multiple solutions may exist.

Correct answers: 29

The first user who solved this task is Nasrin 24 T.

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In 1955, a solar energy battery was first shipped from an American commercial factory, National Fabricated Products, Inc., Chicago, Ill. The battery was disc shaped, about the size of a half-dollar, with two terminals. It was hermetically sealed, and provided about half of a volt of electricity.

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