document.write( "Question 23489: how do u solve a system of equations? \n" ); document.write( "
Algebra.Com's Answer #12273 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
Given a number of equations, say n equations, you need upto n unknowns, to be able to solve them.\r
\n" ); document.write( "\n" ); document.write( "eg 3 equations...you can solve these given 1, 2 or possibly 3 unknowns. Having 4 unknowns or more..it will be impossible.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "As to the processes of solving 2 equations...these are simultaneous. There are Lessons on this website on how to do this: look for solving linear equations etc.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "As for 3 equations, best using matrix theories like Gaussian elimination or Cramers Rule. Again, Lessons on this website for these.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Above 3 equations, then cry or get some pre-written software that will do the number crunching for you...to save your sanity.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Jon
\n" ); document.write( "
\n" ); document.write( "
\n" );