Find the measure of an angle such that the sum of the measures of its complement and its supplements is 220°. The angle measures _____°.
Let the angle be x.
Supplement: S = 180 - x
Complement: C = 90 - x
S + C = 220
(180 - x) + (90 - x) = 220
270 - 2x = 220
50 = 2x
x = 25