Question 831429
{{{A=3*C-26}}}
Complementary angles sum to 90.
{{{A+C=90}}}
Substitute from above,
{{{3C-26+C=90}}}
{{{4C=116}}}
{{{highlight(C=29)}}}
Then, 
{{{A=3(29)-26}}}
{{{highlight(A=61)}}}