Question 189991
8 – 3^x = –1 
3^x = 9
3^x = 3^2
x = 2
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log(3)81 = x
3^x = 81
3^x = 3^4
x = 4
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log x – log 3 = 2 
log(x/3) = 2
x/3 = 10^2
x/3 = 100
x = 300
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Cheers,
Stan H.