Question 754474
{{{x+y = 246}}}
{{{x = 2y+27}}}
Substitution
{{{2y+27+y = 246}}}
{{{3y +27 = 246}}}
{{{3y = 219}}}
{{{y = 73}}}
{{{x = 2y+27 = 2(73)+27 = 173}}}