Let the other endpoint be (x, y).
We can use the midpoint formula to find the x-coordinate of the other endpoint:
(x + (-3))/2 = -2
(x - 3)/2 = -2
x - 3 = -4
x = -1
We can also use the midpoint formula to find the y-coordinate of the other endpoint:
(y + 7)/2 = 5
(y + 7) = 10
y = 3
Therefore, the other endpoint is (-1, 3).