Question 374192
{{{A+S=180}}}
{{{A=2S-6}}}
Substituting,
{{{2S-6+S=180}}}
{{{3S=186}}}
{{{highlight(S=62)}}}degrees
Then 
{{{A=2(62)-6}}}
{{{A=124-6}}}
{{{highlight(A=118)}}}degrees