Question 618674
{{{x+y = 3}}}
{{{x = 3-y}}}
{{{x-y = 5}}}
{{{(3-y) - y = 5}}}
{{{3-2y = 5}}}
{{{-2y = 2}}}
{{{y=1}}}
if y = 1, the {{{x + 1 = 3}}} so x = 2
Solution set is (2,1)