[MA]:
-5 (3 x + 1)
The explanation:
Simplify:
(5 x - 20) + (10 - 15)
Grouping like terms, 5 x - 20 x - 15 + 10 = (5 x - 20 x) + (10 - 15):
(5 x - 20 x) + (10 - 15)
5 x - 20 x = -15 x:
- 15 x + (10 - 15)
10 - 15 = -5:
-5 - 15 x
Factor: -5 out of -15 x - 5:
Answer: -5 (3 x + 1)
[Artsy}
