blankebe blankebe
  • 14-10-2018
  • Mathematics
contestada

Write and solve an equation to find the number n . Four times the difference of a number and 7 is 12.

Respuesta :

micalovell micalovell
  • 14-10-2018
The equation is:
4(n-7) = 12

Solution= n = 10
Answer Link
mambas2001 mambas2001
  • 14-10-2018

4(n-7)=12

distribute the four; 4n-28=12

add 28 to both sides; 4n=40

divide both sided by four; n=10

You can check the work by substituting 10 instead of n

Answer Link

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