Simplify 7|-4-5|+-1

$7 | - 4 - 5 | + - 1$

Step 1

Replace all occurrences of $+$ $-$ with a single $-$ . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because $1 \cdot - 1 = - 1$

$7 | - 4 - 5 | - 1$

Step 2

Simplify each term.

Subtract $5$ from $- 4$ .

$7 | - 9 | - 1$

The absolute value is the distance between a number and zero. The distance between $- 9$ and $0$ is $9$ .

$7 \cdot 9 - 1$

Multiply $7$ by $9$ .

$63 - 1$

Step 3

Subtract $1$ from $63$ .

$62$

Simplify 7|-4-5|+-1

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