Respuesta :
I’m pretty sure the answer would be 4+b because you add the b and the 0 together and you get b and then you use what you have left from the parenthesis (b) and you add it to 4.
Steps to solve:
4 + (b + 0)
~Simplify
= 4 + b + 0
~Combine like terms
= 4 + b
Best of Luck!