Question

What’s the 16th term?

Answer 1

Put 16 where n is, then do the arithmetic.

... a(16) = -6 + 3(16 -1)

... a(16) = -6 + 45

... a(16) = 39

Answer 2

The answer is 39 because you have to plug in 16 for (n-1). Then you do 16-1=15. Then you do 3(15) which is 45. Then you do -6+45=39.