You can put this solution on YOUR website!
It is either a linear equation in or a rational equation in depending on whether the variable is in the denominator or not. Since you didn't use parentheses to eliminate the ambiguity, I can't tell which you mean:
or
The next time you post with a fractional coefficient on the variable, use parentheses like this: (1/4)x = 9.
Or, if you want to show that the variable is part of the denominator, use parentheses like this: 1/(4x) = 9.
John
My calculator said it, I believe it, that settles it