Question 351461
By definition,
{{{A+S=180}}}
{{{S=A+35}}}
Substitute,
{{{A+A+35=180}}}
{{{2A=145}}}
{{{highlight(A=145/2)}}}degrees
Then 
{{{S=145/2+35}}}
{{{S=145/2+70/2}}}
{{{S=215/2}}}degrees