Question 368385
 1.{{{x = y + 6}}}
   2.{{{ y = -2 - x}}}
Substitute eq. 2 in eq. 1,
{{{x=-2-x+6}}}
{{{2x=4}}}
{{{highlight(x=2)}}}
Then from eq. 2,
{{{y=-2-2}}}
{{{highlight(y=-4)}}}
.
.
.
Grpahical verification:
{{{graph(300,300,-5,5,-5,5,0,x-6,-2-x)}}}