Question

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

Answer 1

-27+84n

Explanation:

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

First, Distribute the -2 and -9

18-6n-9+90n

Next, combine like terms (18n and 90n) (-4 and -9)

leaving you with -27 + 84n

Answer 2

-27+84n

Explanation: