Question 683842
Let y="other angle"
x= "one of the angles"


x+y=180
x=2y-69


Solve by substitution:

x+y=180
(2y-69) + y = 180
3y - 69 = 180
3y = 249
y = 83
x=97


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


www.mathinlivingcolor.com.