Simplify 10-5(9n-9)

$10 - 5 (9 n - 9)$

Step 1

Simplify each term.

Apply the distributive property.

$10 - 5 (9 n) - 5 \cdot - 9$

Multiply $9$ by $- 5$ .

$10 - 45 n - 5 \cdot - 9$

Multiply $- 5$ by $- 9$ .

$10 - 45 n + 45$

$10 - 45 n + 45$

Step 2

Add $10$ and $45$ .

$- 45 n + 55$

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