Answer to Question #6484 in Algebra for Hannah

Question

The measure of an angle is half of its supplement. Find the measure of the angle.

Answer 1

Two angles are supplementary if they add up to 180 degrees. Let's denotate unknown angle by x. Then we can construct the following equation:
x=1/2*(180-x) because supplementary angle for x is 180-x
hence 2x=180-x
3x=180
x=60^o - answer