Evaluate (8-(4-2)-(7-9))*9

$(8 - (4 - 2) - (7 - 9)) \cdot 9$

Step 1

Simplify each term.

Subtract $2$ from $4$ .

$(8 - 1 \cdot 2 - (7 - 9)) \cdot 9$

Multiply $- 1$ by $2$ .

$(8 - 2 - (7 - 9)) \cdot 9$

Subtract $9$ from $7$ .

$(8 - 2 - - 2) \cdot 9$

Multiply $- 1$ by $- 2$ .

$(8 - 2 + 2) \cdot 9$

$(8 - 2 + 2) \cdot 9$

Step 2

Simplify the expression.

Subtract $2$ from $8$ .

$(6 + 2) \cdot 9$

Add $6$ and $2$ .

$8 \cdot 9$

Multiply $8$ by $9$ .

$72$

$72$

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