Respuesta :

Answer: b = 9

Step-by-step explanation:

You should multiply 3 x 3 which will give you 9 than you should subtract it by 9 and that will give you 0 since that is according to your question

Answer:

b = 9

Step-by-step explanation:

3 (3 - b) = 0

9 - b = 0

9 = b

b = 9