Respuesta :
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
9x = 63
---- ----
9 9
x = 7
Hope this helped! :)
~Ash