gabrielguarton1 gabrielguarton1
  • 30-08-2017
  • Mathematics
contestada

Point E is between points D and F. If DE = x - 4 , EF = 2x + 5 , and DF = 4x- 8 , find x

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ashleen03 ashleen03
  • 30-08-2017
You know that 
[tex]DE+EF=DF (x-4) + (2x+5) = (4x-8) [/tex]

combine like terms[tex]3x+1 = 4x-8 1 = x-8 x=9[/tex]
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