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Expanding and improving mathematical answers
Firstly, according to the relationship between AC (7A=6C, 7/6A=C) and BC(7B=C), find out the corresponding relationship between them, that is
7/6A=7B=C, and a is 8A.
8A=8*6/7A*7/6=8*6/7*7B=48B
Then b turns 48 times.
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