Respuesta :
Answer:
30
Step-by-step explanation:
9b - c when b=3 and c= -3
Plug the numbers in
9(3) - (-3) when you subtract a negative number, you turn it into adding a positive number. Two negative signs make it positive.
9(3) + 3
27 + 3
30
Take 9 and multiply that by the given for b and then subtract c from the answer of 9xb and then you have your answer.
