Question 585345
I'll assume you meant the exponent to be "4x".
.
{{{27^(4x)=9}}}
{{{log(27,27^(4x))=log(27,9)}}}
{{{4x=log(27,9)}}}
{{{4x=log(9)/log(27)}}}
{{{x=log(9)/(4*log(27))}}}
{{{x=0.1667}}}