pq89220 pq89220
  • 23-08-2020
  • Mathematics
contestada

Solve |4n−15|=|n|.

The solutions are n=
and n=
.


Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 23-08-2020

Answer:

n=3   n=5

Step-by-step explanation:

|4n−15|=|n|

Positive

4n−15=n

Subtract 4n from each side

-15 = -3n

Divide by -3

-15/-3 = n

5 = n

negative

4n -15 = -n

Subtract 4n from each side

-15 = -5n

Divide by -5

-15/-5 = n

3 = n

Answer Link
swan85 swan85
  • 23-08-2020

Answer:

n=3 and n=5

Step-by-step explanation:

|4n−15|=|n|

we know either

4n-15=-n        or 4n=15=n

4n+n=15              4n-n=15

5n=15                     3n=15

n=15/5=3                 n=15/3=5

Answer Link

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