Answer:
9 (c - 2)
Explanation:
Simplify the following:
3 (c + 4) + 6 (c - 5)
3 (c + 4) = 3 c + 12:
3 c + 12 + 6 (c - 5)
6 (c - 5) = 6 c - 30:
12 + 3 c + 6 c - 30
Grouping like terms, 12 + 3 c - 30 + 6 c = (3 c + 6 c) + (12 - 30):
(3 c + 6 c) + (12 - 30)
3 c + 6 c = 9 c:
9 c + (12 - 30)
12 - 30 = -(30 - 12):
9 c + -(30 - 12)
| 2 | 10
| 3 | 0
- | 1 | 2
| 1 | 8:
9 c - 18
Factor 9 out of 9 c - 18:
Answer: 9 (c - 2)