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

Answer:

39

Step-by-step 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, $122=3n+5\\3n=117\\n=39$