120 the formula for interior angles of a shape is ((n-2)180)n
Correct answer is B
25 characters
Answer: n = -2
Step-by-step explanation:
3n +2(n + 2) = 9n + 12
(simplify 2(n + 2)) =
3n + 2n + 4 = 9n + 12
(subtract 9n from both sides)
3n + 2n - 9n + 4 = 12
-4n + 4 = 12
(subtract 4 from both sides)
-4n = 8
(divide -4 from both sides)
n = -2
Answer:
5
Step-by-step explanation:
GJ/UT
10/2
5
11.1d + 3.2h - 15 here you go
