Question

Find the measure of an angle whose supplement is three times its complement

Answer 1

let x be one angle and the suppllement be equal to y

it says y is three times its complement so

y = 3(90-y)
y = 270 - 3y
4y = 270
y = 270/4
y = 67.5

since y is 67.5 and it is the supplement, then x would be 180 - y = 180 - 67.5 = 112.5 if my calculations are correct