SOLUTION: i need help with solving logs solve the equation 6^(x-1)-3=9 thanks

Question 749469: i need help with solving logs
solve the equation
6^(x-1)-3=9
thanks
Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
solve the equation
6^(x-1)-3=9
---------------
6^(x-1) = 12
(x-1)*log(6) = log(12)
x-1 = log(12)/log(6)
x = 1 + log(12)/log(6)
You can stop here, or
----------------
x = (log(6) + log(12))/log(6)
x = log(72)/log(6)
or,

--------
x =~ 2.387

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