Answer:
Step-by-step explanation:
3. n - 8(9n + 5) = n - 72n + 40 = -71n - 40
4. 6b - 24b + 15 = -18b + 15
5. -x + 2 + 7x = 6x + 2
6. -50 - 40x + 7 = -40x - 43
7. 10 - 81 -90n = -71 -90n
8. -4a + 32 + 6a + 24 = 2a + 56
