X by its self is always 1x
1x+8=-15 you have to get rid of 8 by subtracting on both sides
1x=-23 now get rid of 1 by dividing on both sides
x=-23
Salutations!
12

- 9

=
Then,
- 9

-

Next, our final answer:
=

= 2
Our decimal would be 2.916667
Hopefully This Helps!!!
Are you trying to figure out the value of n?
6a³-18a²-1620a
Collect 6a:
6a(a²-3a-270)
6a(a-18)(a+15)