Answer:
(7, 5)
Step-by-step explanation:
Let us graph the point and the line so we can see the problem laid out for us.
-> See attached
We can see that the coordinate values (x and y) are flipped and the signs also both flip.
This also can be found by solving the equation:
y = -x
-7 = -x
7 = x
--------------
y = - -5
y = 5
