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Answer:
x = 15
Step-by-step explanation:
The circle is called circle M. That means M is the center of the circle.
Point A is located on the circle. That means that segment AM is a radius of the circle.
The diameter of a circle is twice the radius.
diameter = 2(AM) = 2(2x + 7)
diameter = 74
2(2x + 7) = 74
2x + 7 = 37
2x = 30
x = 15