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IgorLugansk [536]
3 years ago
10

Please show work on how you got the answer

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0
Since E is the midpoint, DE and EF are the same length.
Set the equation DE and EF equal to each other and solve for x.
2x + 4 = 3x - 1
x = 5
Then plug in 5 to find the length.
DE = 2(5) + 4 = 14
EF = 3(5) - 1 = 14
DF = DE + EF = 28
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