Answer:4
Step-by-step explanation:
16b+4b-10b-2b-5b=12
3b=12
B=4
16b + 4b - 10b - 2b - 5b = 12
20b - 10b - 2b - 5b = 12
10b - 2b - 5b = 12
8b - 5b = 12
3b = 12
3b/3 = 12/3
b = 4
