$$x=7y=9$$
$x=9\text{ and }y=\frac{9}{7}$
$x=9$
$y = \frac{9}{7} = 1\frac{2}{7} = 1.2857142857142858$
$y = \frac{9}{7} = 1\frac{2}{7} = 1.2857142857142858$
$x=9$