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3^x-5=81 Exponential equation
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5 votes
3^x-5=81
Exponential equation

User Mmhan
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1 Answer

3 votes
I assume it's
3^(x-5)


3^(x-5)=81\\ 3^(x-5)=3^4\\ x-5=4\\ x=9
User Kavindu Nilshan
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