Respuesta :
Answer:
the answer for the question is 22
Step-by-step explanation:
as I said,a certain number =x
therefore,x-9=13
x=13+9
x=22
Answer:
the answer for the question is 22
Step-by-step explanation:
as I said,a certain number =x
therefore,x-9=13
x=13+9
x=22