
Doug C. answered 10/05/21
Math Tutor with Reputation to make difficult concepts understandable
Let x = measure of the first angle
Then (180-x) is an expression that represents its supplement.
We are told that the given angle is 84.6 degrees more than its supplement.
That means we can write the following equation to model the situation:
x = 84.6 + (180-x) [angle is 84.6 more than its supplement]
2x = 264.6
x= 132.3 This is the original angle
Its supplement is:
180.0 - 132.3 = 47.7
Check:
47.7 + 84.6 = 132.3 , i.e. 132.3 is 84.6 more than its supplement 47.7.