Evaluate 9|12-14+1|-1

$9 | 12 - 14 + 1 | - 1$

Simplify each term.

Subtract $14$ from $12$ .

$9 | - 2 + 1 | - 1$

Add $- 2$ and $1$ .

$9 | - 1 | - 1$

The absolute value is the distance between a number and zero. The distance between $- 1$ and $0$ is $1$ .

$9 \cdot 1 - 1$

Multiply $9$ by $1$ .

$9 - 1$

Subtract $1$ from $9$ .

$8$