Find number abc
If 9b80a - 90ac7 = bbbb find number abc. Multiple solutions may exist.Correct answers: 9
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Luna 16In 1970, Luna 16 was launched, another in a series of unmanned Soviet lunar probes, which was the first unmanned spacecraft to carry lunar soil samples back to Earth. It was followed by Luna 17, launched 10 Nov 1970, which soft-landed a robot exploration vehicle. |