Question 1201971
{{{system(f=3/g,and,g-3/f-1)}}}


also, {{{g=3/f}}}.


(1)
{{{g-3/(3/g)-1}}}
{{{g-3(g/3)-1}}}
{{{g-g-1}}}
{{{-1}}}


(2)
{{{(3/f)-3/f-1}}}
{{{3/f-3/f-1}}}
{{{0-1}}}
{{{-1}}}