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Because b is the mid point of pq, pb = qb.

pb is half as long as pq

Eq#1....pb = 1/2 pq

Eq#2....pq = pb +8

Substitute Eq#1 into Eq #2

pq = 1/2 pq + 8

subtracting1/2 pq from both sides

1/2 pq = 8

pq = 16

problem here: you can't subtract 1/2 ... you would have to divide.

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Q: Point b is the midpoint of the line segment pq line segment pq is eight centimeters longer than line segment pb what is the number of centimeters in the length of line segment qb?
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