Question 470552
{{{4^(9x+1)=1/16}}} 
{{{4^(9x+1)=4^-2}}}
{{{9x+1=-2}}}
{{{9x=-2-1}}}
{{{9x=-3}}}
{{{x=-3/9}}}
{{{x=-1/3}}}
Answer: e.x=-1/3