180a^3+900a^3+4a-5
__________________ + a-1/ 6a^a
6a ( a+ 5)
<em>Greetings from Brasil....</em>
As stated in the statement of the question, EF is a bisector of CD, so point G is the median point of CD, so CG = GD
5X - 1 = 7X - 13
X = 6
EF = EG + GF
6X - 4 = EG + 13 x = 6, so
6·6 - 4 = EG + 13
<h2>EG = 19</h2>
<em>(see attachment)</em>
Correct me if I’m wrong, I believe you have to add all of those numbers together. Then divide after and plug in those remaining digits