What is the answer to this Algebraic Pattern?

Virgo

New member
The pattern is: 9, 6, 1, -6, -15

I know the difference between the pattern goes: -3, -5, -7, -9, etc.
Within that pattern, there is another pattern of -2.

However, I don't know how to express this pattern into an Algebraic Statement. Please Help!

Thanks in advance :)
 
Back
Top