Question 558216
Let x = one of the angles
2x-5 = second angle


Supplementary means that the angles add to 180 degrees.


x + 2x-5=180
3x - 5=180
3x=185
x=185/3=61.666...
2x-5=370/3-5=123.333...-5=118.333...


Check:  61.666... + 118.333... = 180  It checks!! 


If anyone needs to contact me, especially about the website, my Email address is rapaljer@seminolestate.edu.  I'll be glad to help you find an explanation on my website to help you with your algebra topic!


Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus