Answer:
b=1
Step-by-step explanation:
1) Distribute
6+7b-7=5+b
2) Combine like ter,s
7b-1=5+b
3) Isolate variable
6b=6
4) Solve
b = 1
6 + 7b - 7 = 5 + b
7b - b = 5 - 6 + 7
6b = 6