Question 950595
From the first equation,
{{{x+y=5}}}
So then,
{{{x=5-y}}}
Substituting into the second equation,
{{{3(5-y)-(1/2)y=11}}}
{{{15-3y-(1/2)y=11}}}
{{{-(7/2)y=-4}}}
{{{y=8/7}}}
So then,
{{{x=5+8/7}}}
{{{x=35/7-8/7}}}
{{{x=27/7}}}