Question

The measure of the supplement of a 129 degree angle

Answer 1

Its supplement is 51 degrees

Explanation:

180-129=51

Hope this helped

Answer 2

The supplement is 51 degrees

Explanation:

Supplementary angles add to 180 degrees

Let x be the supplement

x+129 = 180

Subtract 129 from each side

x+129-129 = 180-129

x =51