8 x2 is 16; we have a negative sign, so that makes our answer -16
Answer:
The first term is:
Step-by-step explanation:
The arithmetic sequence is defined by

where
is the first term
is the common difference
as
the 17th term of an arithmetic sequence is 51.
i.e. 
so

∵
,
, 
∵ 

Therefore, the first term is:
i dont know my friend so try asking someone better than cause i have no brain for this type of math
Answer:
i think you have to multiply the sides..
Step-by-step explanation: