Question 197861
3^2x=15 
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To solve for x:
log(3^2x) = log(15) common logs, base 10.  Natural logs would work too.
2x*log(3) = log(15)
2x = log(15)/log(3)
x = log(15)/2log(3)
x = log(15)/log(9)
x = ~ 1.2325