The value of x from the given parameters is x = -1/7
<h3>How to determine the value of x?</h3>
The given parameters are:
Point E is between points D and F
DF = 18x - 1
DE = 3x + 5
EF = -x - 8
The statement point E is between points D and F, means that
DF = DE + EF
Substitute the known values in the above equation
So, we have:
18x - 1 = 3x + 5 + x - 8
Collect the like terms
So, we have
18x - 3x - x = 5 - 8 + 1
Evaluate the like terms
14x = -2
Divide both sides by 14
x = -1/7
Hence, the value of x from the given parameters is x = -1/7
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