Answer:

Step-by-step explanation:
Use the midpoint formula:

We want to find the midpoint of the line
that has endpoints.

We simplify to get;

This finally gives:

The correct answer is A.
2z +7 = -5
2z = -5 -7
2z = -12
z= -12 /2
z= -6
Answer:
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Step-by-step explanation:
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