Since you don't provide the coordinates of the point W, I will help you in a general form anyway. In the Figure below is represented the segment that matches this problem. We have two endpoints U and V. So, by using the midpoint formula we may solve this problem:

Therefore:

So we know
but we also must know 
Finally, knowing the points U and W we can find the endpoint V.
The answer to 4-6 is negative 2
Answer:
6
Step-by-step explanation:
7n=42
n=42/7
n=6
Answer:
The answer is A.
Step-by-step explanation:
thats what i think