we have that
The coordinate of point B(8,7) and the coordinate of point C(6,3)
Find the midpoint BC
Remember that the formula to calculate the midpoint between two points is equal to

we have
(x1,y1)=B(8,7)
(x2,y2)=(6,3)
substitute the given values in the formula

therefore
The coordinates of point N are (7,5)