Consider the sequence: 11, 21, 31, ..., ..., ... What is the 2012th term of this sequence?

let aⁿ to be the amount of term, a₁ initial term, n the terms and d distance between the numbers.

aⁿ = a₁ + (n-1) d

a²=11 + (2-1) (10) = 22

a²⁰¹²=11 + (2012-1) (10) = 20121