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E is the midpoint of DF. if DE =5x + 4 and DF =78.

E is the midpoint of DF. if DE =5x + 4 and DF =78.-example-1
User Laerion
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1 Answer

3 votes

Answer:

  • x = 7

Explanation:

  • Assumed it is asking to find the value of x

Given

  • F is midpoint of DF
  • DE = DF/2
  • DE = 5x + 4
  • DF = 78

Solution

  • 5x + 4 = 78/2
  • 5x + 4 = 39
  • 5x = 35
  • x = 7
User Stuart Watt
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6.2k points