Answer:
b + 17 
Explanation:
Now we have to,
→ Simplify the given expression. 
The property we use,
→ Distributive property. 
The expression is,
→ 3(6 + b) - (2b + 1) 
Let's simplify the expression,
→ 3(6 + b) - (2b + 1) 
Applying Distributive property: 
→ 3(6) + 3(b) - (2b) - (1) 
→ 18 + 3b - 2b - 1 
Combining the like terms:
→ (3b - 2b) + (18 - 1) 
→ (1b) + (17) 
→ b + 17 
Hence, the answer is b + 17.