Respuesta :

x=7 because you would divide 63 by 9 to find the value of x 
Simple algebra. 9x = 63 is just 63 divided by 9, which is 7. Another way to do it is to divide 9 from both sides of the equation, like so:

9x = 63
----   ----
9       9

x = 7

Hope this helped! :)

~Ash