It is given that the segment CE and point D that lies on CE. The length of ED will be 3.
What is a line segment?
A line segment is a straight line with finite length, and thus, have to endpoints(points on either ends).
It is given that the segment CE and point D that lies on CE we need to find ED
ALso, CE=29, CD=40-7x, and ED=-9+6x
We know that CD + DE = CE
Substitute;
40-7x + (-9+6x) = 29
40 - 7x -9 + 6x= 29
31 -x = 29
x = 2
ED =-9+6x = -9 + 12
ED = 3
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