Question 569183
a. {{{ln(2x-1)=3}}}
If {{{ln(a)=b}}}, then {{{a=e^b}}}
{{{2x-1=e^3}}} add 1 to the both sides of the equation

{{{2x=e^3+1}}} divide by 2
{{{x=(e^3+1)/2}}}
use scientific calculator {{{x=10.54}}}

 b.  {{{log x = 1/10000}}}
If {{{log(a)=b}}}, then {{{a=10^b}}}
{{{x = 10^(1/10000)}}}

d. {{{ln(x+3) = 1 }}}
{{{x+3=e^1}}}
{{{x=e-3}}}