Question 198375
Two Angles are Complementary if they add up to 90 degrees (a Right Angle).

the measure of an angle is 30 more than 4 times the measure of its complement
{{{a+b=90}}}
{{{a=4b+30}}}
{{{(4b+30)+b=90}}}
{{{5b=60}}}
{{{b=12}}}
{{{a=4(12)+30}}}
{{{a=48+30}}}
{{{a=78}}}
{{{(78)+(12)=90}}}?
{{{90=90}}}