Can u show us a pic of the question
Alright...so the coordinates of an ordered pair have opposite signs [one sign is positive while the other is negative] so we could have an example of (-x,+y) or (+x,-y) ...that means out of the 4 quadrants these points could be in the 2nd quadrant or the 4th quadrant or corners of the graph
When you add them together you get 238.
All u have to do is substract wich equals -129
Answer:

Step-by-step explanation:
See pic.