Question 956842
{{{ln(u^3)=7*ln(u)}}}
{{{3*ln(u)=7*ln(u)}}}
{{{3*ln(u)-7*ln(u)=0}}}
{{{ln(u)(3-7)=0}}}
{{{ln(u)(-4)=0}}}
{{{ln(u)=0}}}
{{{u=1}}}