Find the First Term a_n=3n+4

$a_{n} = 3 n + 4$

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

$a_{1} = 3 (1) + 4$

Multiply $3$ by $1$ .

$a_{1} = 3 + 4$

Add $3$ and $4$ .

$a_{1} = 7$

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