Verified Answer :

apologiabiology

so we can get pairs
(x,y)
we have
(-3,-3)
(7,-3)
(7,2)


so list known ones
x=-3,7,7
y=-3,-3,2
we find pairs
x=7 and 7
y=-3 and -3
the missing one is another -3 for x and 2 for y
therefor the last point is
(-3,2)

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