Question 408050
The supplemental angle added to the complement of the angle gives 210 degrees.
 What is the measure of the angle?
:
Let a = the angle
then we know
(180-a) = the supplement of the angle
and
(90-a) = the complement of the angle 
:
Therefore the equation is:
(180-a) + (90-a) = 210
-2a + 270 = 210
-2a = 210 - 270
-2a = -60
a = 30 degrees is the angle, not that hard, right?