Find the First Term a_n=3n+1

$a_{n} = 3 n + 1$

Step 1

Substitute in the value of $n$ to find the $n$ th term.

$a_{1} = 3 (1) + 1$

Step 2

Multiply $3$ by $1$ .

$a_{1} = 3 + 1$

Step 3

Add $3$ and $1$ .

$a_{1} = 4$