Mid point of a segment divides the segment in two equal parts.
Value of x is 3.
It's given in the question,
Therefore, EF = FG = (6x + 7)
And EF + FG = EG (By segment addition postulate)
Now substitute the values in the expression
(6x + 7) + (6x + 7) = (18x - 4)
12x + 14 = 18x - 4
12x - 18x = -14 - 4
-6x = -18
x = 3
Therefore, the value of x is 3.
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