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Find number abc

If 87c7a - 8c824 = cbb2 find number abc. Multiple solutions may exist.

Correct answers: 21

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I lift weights only...

“I lift weights only on Saturday and Sunday because Monday to Friday are weak days.”

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Pyotr Petrovich Lazarev

Born 13 Apr 1878; died 23 Apr 1942 at age 64.Soviet physicist and biophysicist known for his physicochemical theory of the movement of ions and the consequent theory of nerve excitation in living matter, which attempts to explain sensation, muscular contraction, and the functions of the central nervous system. He trained as a medical doctor in Moscow. In addition, he studied mathematics and physics on his own. His doctoral thesis (1912) at Moscow University was a fundamental investigation in prequantum photochemistry. He supported the October Revolution. Lazarev established prospecting surveys, which revealed enormous national reserves of iron ore (1919).

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