Question

please, help setting up this problem: the measure of an angle is 20 less than 3 times its supplement. find the measure of the angle.

Answer 1

let angle be x and its supplement is 180 - x

so, x = 3 (180-x) - 20

x = 540 - 3x - 20

4x = 520

x = 130 degrees...

Answer 2

thank you

Answer 3

wc