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Solve for n: 3^n−1×81=3^5

Solve for n: 3^n−1×81=3^5
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2 votes
Solve for n: 3^n−1×81=3^5

asked
User Matthias Wimmer
by
8.1k points

1 Answer

5 votes

Answer:

Hello,

Explanation:


3^(n-1)*81=3^5\\\\3^(n-1)*3^4=3^5\\\\3^(n-1)=3^(5-4)\\\\n-1=1\\\\\boxed{n=2}

answered
User Carloabelli
by
8.0k points
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