Question 1153101
Subtract first equation from second equation.
{{{log(y)=-1}}}
If base 10 logs, then  {{{10^(-1)=1}}}.
{{{highlight(y=1)}}}



Next use elimination of log(y).
{{{2log(x)+2log(y)=8}}}
{{{log(x)+2log(y)=3}}}
-
subtract.
{{{log(x)=5}}}
{{{highlight(x=10^5)}}}