Answer:
x=12
Step-by-step explanation:
combine like terms
We're given an arithmetic sequence
that starts with
and a common difference between terms of
. Recursively, this sequence is given by

We can find an explicit formula for the
-th term
:



and so on, with the general pattern of

We're given that the sum of the first
consecutive terms is

Recall that


So we solve for
:






(there are two solutions, but only one is a positive integer)
Answer:
x=3/16
Step-by-step explanation: