Question

9 = -3 + n + 2n what does n equal ?

Answer 1

`9 = - 3 + n + 2n`

now let's flip this equation to make things easier

`- 3 + n + 2n = 9`

now move -3 to the other side

when we move -3 to the other side it turns into positive 3

`n + 2n = 9 + 3`

now add the values on both sides

n + 2n will be equal to 3n and 9 + 3 will be equal to 12

`3n = 12`

now move 3 to the other side

the multiplication sign that binded 3 and n together will change into division when moved to the other side

`n = (12)/(3)`

when we divide 12 and 3 we will get 4

`n = 4`

so final answer is 4

hope that helps !

Answer 2

Explanation:

9=-3+n+2n

9+3=n+2n

12=3n

n=12/3

n=4