Please help me on one math question thanks !

Answer:
A. (-22, 17)
Step-by-step explanation:
M is the midpoint, so is calculated as ...
M = (L +N)/2
Solving for L, we find ...
2M = L +N
L = 2M -N
L = 2(-12, 6) -(-2, -5) = (2(-12)-(-2), 2(6)-(-5)) = (-24+2, 12 +5)
L = (-22, 17)