Simplify the following:
7 - 3 (9×2 n + (3 n + 8 n)/(-n))
3 n + 8 n = 11 n:
7 - 3 (9×2 n + (11 n)/(-n))
(11 n)/(-n) = n/n×11/(-1) = 11/(-1):
7 - 3 (9 2 n + 11/(-1))
Multiply numerator and denominator of 11/(-1) by -1:
7 - 3 (9 2 n + -11)
9×2 = 18:
7 - 3 (18 n - 11)
-3 (18 n - 11) = 33 - 54 n:
33 - 54 n + 7
Add like terms. 7 + 33 = 40:
40 - 54 n
Factor 2 out of 40 - 54 n:
Answer: 2 (20 - 27 n)