ally5829 ally5829
  • 01-09-2020
  • Mathematics
contestada

9. If DF = 42, find DE.
7x+1 4x-3
DEF what is DE​

Respuesta :

jadakinsinger12
jadakinsinger12 jadakinsinger12
  • 01-09-2020

Answer:

29

Step-by-step explanation:

So DF = 42, And we know that DF = DE + EF

Therefore (7x+1) + (4x-3) = 42

11x -2 = 42

11x = 44

x = 4

Substitute x = 4 onto DE equation, so 7(4) +1

= 29.

Answer Link

Otras preguntas

Which practice is characteristic
Write a linear or exponential equation from the following points: (5, 12.5) (3, 7.5)
Gabby is creating a reference list for her investigative report. Complete the sentences to help her use the APA style for citing sources. When noting the auth
What is the equation of the following line?
at least two hundred words discuss okonkwo's relationship to his father and the themes it reveals​
I need help with both these questions please
Problem Solving Strategy Categories Drawing a picture Making a Table Working Backwards Looking for a Pattern
In this sentence from the second paragraph of the passage, the phrase clothing the base of the mountain is used A) to suggest that the mountain forest is impene
Read this sentence from paragraph 6 of the passage. “Often the accompanying voice you hear is straightforward, knowledgeable, and quite friendly.” What does the
How would I solve this