btw -_- I've gotten them all right the way here I know it looks like I'm stupid but fr I been keepin up lately anyways lol plz answer with explanation I have trouble with these ones

Answer:
10
Step-by-step explanation:
Since T is the midpoint of PQ, we know that PT = TQ, therefore:
3x + 1 = 5x - 5
-2x = -6
x = 3
Since PT = 3x + 1, the answer is PT = 3 * 3 + 1 = 10.