Question 1175368
<pre>
SOLUTION        VOLUME         PURE
  15%            96-4v       0.15(96-4v)
  30%             v          0.3v
  50%            3v          0.5*3v
TOTAL            96          0.35*96
</pre>
Simplify and solve for v:
{{{0.15(96-4v)+0.3v+0.5*3v=0.35*96}}}