GEOMETRY HOMEWORK HELP!!! please help!?

Question

How do u find the value of x and the measure of the indicated segment?? AD = 6x - 4, AC = 4x - 3 ; CD

when AC + CD = AD

please help and explain how u got that answer!!

thanks...

[i know this is a repost...=/]

Answer 1

AC + CD = AD

(4x - 3) + CD = (6x - 4)

CD = 6x - 4 - (4x - 3)

CD = 6x - 4 - 4x + 3

CD = 2x - 1

I am not sure how to find x, though; I hope everything else helps!