Algebra Examples

$(- 2 n + 8)$

Step 1

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

$a_{2} = - 2 \cdot 2 + 8$

Step 2

Remove parentheses.

$a_{2} = - 2 \cdot 2 + 8$

Step 3

Multiply $- 2$ by $2$ .

$a_{2} = - 4 + 8$

Step 4

Add $- 4$ and $8$ .

$a_{2} = 4$