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Posted by **CheezyReezy** on Monday, June 6, 2011 at 1:43pm.

5e^(x log(9)) = 11

- Math - Exponential equation -
**Reiny**, Monday, June 6, 2011 at 2:06pmI am assuming log 9 is base 10, since you didn't state otherwise.

take ln of both sides

ln(5e^(xlog9) = ln11

ln5 + xlog9(lne) = ln11

xlog9 = ln11 - ln5

x = (ln11 - ln5)/log9

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