Not sure if anyone will be able to help with this but:
The three angles of a triangle have measures $\angle A = x+2y$ degrees, $\angle B = 6x - 5y$ degrees, and $\angle C = 5x+3y$ degrees. Find $x$ (in degrees).
Add them all together and they should add up to 180 degrees
x + 2y + 6x - 5y + 5x +3y = 180
Thanks so much! I don't know how I missed that :I