<p>S= rt-3/r-t</p>
<p>Solve for R</p>
<p>Could you please put parentheses on the expression?
The way it is written means: S = rt - (3/r) - t. Is that the intended meaning?</p>
<p>sorry…it’s</p>
<p>S= (rt-3) / (r-t)</p>
<p>solve for r</p>
<p>Ok, so:</p>
<p>s= (rt-3) / (r-t)
s<em>(r-t) = (rt-3)/(r-t) * (r-t)
s</em>(r-t) = rt-3
sr - st = rt-3
sr-rt = st-3
r*(s-t) = st-3
r = (st-3)/(s-t)</p>
<p>Hope this helps!</p>
<p>yes, thanks. That was so easy but I had a brain fart.</p>