If F is the mid point of EG and EF = 3x and EG = 5x + 7,then EF=21.
Given that F is the mid point of EG and EF = 3x and EG = 5x + 7.
We are required to find the length of EF.
Mid point is the point which divides the line or line segment into two equal parts.
Because F is the mid point of EG so EG=2*EF
Using the expressions of EG and EF in the equation above.
5x+7=2*3x
5x+7=6x
x=7
EF=3*7
EF=21
Hence if F is the mid point of EG and EF = 3x and EG = 5x + 7,then EF=21.
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