Question 84808
{{{D=(C-s) /n}}}


{{{Dn= C-s }}}


{{{Dn-C = -s}}}
{{{-s= Dn-C }}}


Divide both sides by -1:
{{{(-s)/-1= (Dn-C)/-1 }}}
{{{s = -Dn +C }}}
{{{s=C-Dn}}}


R^2 at SCC