pls help no need for long explanations just a summary

Answer:
FG - it is midline. FG = 5.
Explanation:
A midline in a triangle is a line segment connecting the midpoints of two sides.
A midline is half the length of the side to which it is parallel.
[tex]\dfrac{CE}{FG} =2\\\\ \dfrac{9x-26}{7x-23} =2\\\\9x-26=2(7x-23)\\9x-26=14x-46\\14x-9x=46-26\\5x=20\\x=4[/tex]
CE = 9 · 4 - 26 = 10
FG = 10/2 = 5