Explanation

 The formula for the nth term of an arithmetic sequence is aₙ = a₁ + (n - 1)d, where: 

aₙ is the nth term of the sequence

a₁ is the first term of the sequence

n is the term number (e.g., 1st term, 2nd term, etc.)

d is the common difference between consecutive terms

For example, if the first term (a₁) is 2 and the common difference (d) is 3, then the 5th term (a₅) would be calculated as follows: 

a₅ = 2 + (5 - 1)3 = 2 + 4 * 3 = 2 + 12 = 14