Question

Two angles are supplementary angles. One angle measures 58 degrees. The other angle measures 3n + 5 degrees. What is the value of n?

Answer 1

39

Explanation:

Angles are supplementary when they add up to 180. So, we know the other angle that isn't 58 is
`180-58=122`. Therefore,
`122=3n+5\\3n=117\\n=39`