yasso
yasso yasso
  • 20-09-2017
  • Mathematics
contestada

n-3-4n=21
( please solve)

Respuesta :

AnimeBrainly
AnimeBrainly AnimeBrainly
  • 20-09-2017
N- 3 - 4n = 21

-3n = 24

n = -8

hope this helps
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 20-09-2017
remember, you can do anything to an equation as long as you do it to both sides

assuming N=n

1n-3-4n=21
1n-4n-3=21
-3n-3=21
add 3 to both sides
-3n=24
divide both sides by -3
n=-8
Answer Link

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