Answer:
times
Step-by-step explanation:

Divide both sides by 5

Hope this helps
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You can use midpoint formula
M=x1+x2/2 , y1+y2/2
M=-2+4/2 , 2+2/2
M= 1,2
It's been a while since I have done these kind of questions, but I would say a 180 transformation would be my best answer. Hope this helps a bit!