Answer:
n=-4
Step-by-step explanation:
n = -4
- 5 (2n + 7) = 3n + 9 - 2n
- 10n - 35 = 3n + 9 - 2n
- 10n - 3n + 2n = 9 + 35
- 11n = 44
- n = 44/11
- n = 4
n = - 4
