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-9(8n+4p)-7p-2(10p-9n)

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Final answer:

To simplify the expression -9(8n+4p)-7p-2(10p-9n), distribute -9 and -2, and then combine like terms to get -54n - 63p.

Step-by-step explanation:

To simplify the expression -9(8n+4p)-7p-2(10p-9n), we can use the distributive property and combine like terms.

  1. Distribute -9 to each term inside the parentheses: -72n - 36p
  2. Distribute -2 to each term inside the second set of parentheses: -20p + 18n
  3. Combine like terms: -72n - 36p - 7p - 20p + 18n
  4. Combine like terms again: -54n - 63p

So the simplified expression is -54n - 63p.

User Eyal Levin
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