title: how to solve 6 unknowns from 6 linear equations in c/c++
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/2474432/system-of-linear-equations-in-c">System of linear equations in C++?</a>  </p>
  </blockquote>
  
  
  
  <p>Hi Is there any built in function to solve the linear equations with 6 unknowns.
  Assume we have 6 equation as well.</p>
  
  <p>Is there any easy and efficient way to solve these equations?</p>