Respuesta :

Answer:

84n-27

Step-by-step explanation:

-9(1-10n)-2(3n+9)

-9+90n-6n-18

-27+84n

-96n-27 because yu have to multiply -9 time the first set of parentheses which then would give yu -9-90n and yu multiply -2 times the second set of parentheses which gives yu -6n-18 so combine like terms and it gives yu -96n-27
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