ln(x)=-3

Mmm  a little confusion here I think :)

 

$$\\ln(x)=-3\\\\
e^{ln(x)}=e^{-3}\\\\
x=e^{-3}\\\\
x=\frac{1}{e^3}$$

ln(x) = -3

take e from both sides

x = e^-3

x =.05