Answer:
midsegment = 8
Explanation:
(3y-7) + (y+3) = (y+6)/2
4y -4 = (y+6)/2
8y - 8 = y + 6
7y - 8 = 6
7y = 14
y = 2
y+6 = 2 + 6
mid segment = 8
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