Respuesta :

complimentary angles add up to 90 degrees

so if x is one angle, then its complement is (90 - x)

x = 2(90 - x) + 9
x = 180 - 2x + 9
x + 2x = 180 + 9
3x = 189
x = 189/3
x = 63 <=== the measure of ur angle

and its compliment is (90 - 63) = 27