Answer:
9 + 3b
Step-by-step explanation:
This is a rather very simple question to solve. And the first step is to look at the variables given.
From the question, we're told to add 3 to b
This means that
3 + b
Then, we are told to triple the result. This means that we multiply it by 3.
3 (3 + b)
And when we open the brackets, we have something like this
9 + 3b
