Question

Please help thanks
a(n)=−6+3(n−1)

Answer 1

a=-1

Explanation:

a(n) = -6+3(n-1)

a(n) = -6+3n-3

a(n) -n=-6+3n-n-3

a=-6+3-3

+3 +3

a3=-3

---- ----

3 3

a=-1