Math Question Help

[Quix]

<p>x/y=r
ry=x</p>

<p>Now substitute.</p>

<p>ry+y/x =</p>

<p>Then distribute y</p>

<p>y(r+1)/ry =</p>

<p>(r+1)/r </p>

<p>D</p>

<p>Hope that helps !</p>