Answer: x = 2
Explanation:
P-----------------------T----------------------Q
(3x-3) (5x-7)
Since T is the midpoint we know that PT and TQ are equal
Just solve the equation: 3x-3 = 5x-7
now move the x to one side
(I subtracted the 3x)
then get the 2x by itself
lastly, divide by 2 to get x by itself