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Edufirst
PTQ are in a straight line

Given the T is the midpoint of PQ, PT = TQ

Then, 4x + 2 = 7x - 7

7x - 4x = 2 +7

3x = 9

x = 3; and 4x + 2 = 4(3) + 2 = 12 + 2 = 14

Answer: PT = 14

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