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If 6^(n + 5) - 6^(n + 3) = 7560, What is the value of n?

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If 6^(n + 5) - 6^(n + 3) = 7560, What is the value of n?
posted May 9, 2017 by anonymous

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2 Answers

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6^(n + 5) - 6^(n + 3) = 7560
6^2*6^(n + 3) - 6^(n + 3) = 7560
(6^2-1)*6^(n + 3)=7560
6^(n + 3)=7560/35=216
n + 3=3
n=0

answer May 9, 2017 by Seven753
0 votes

n=0, it works every time!!

answer May 12, 2017 by anonymous



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