The numerical value of x is 2.5
The given parameters are:
DE = 3x
EF = x + 1
DF = 11
The above parameters can be represented as:
DF = DE + EF
Substitute the known values in the above equation
11 = 3x + x + 1
Evaluate the like terms
4x = 10
Divide by 4
x = 2.5
Hence, the numerical value of x is 2.5
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