\r\n" );
document.write( "Multiply the first equation through by -3 \r\n" );
document.write( "and the second equation through by +2, so \r\n" );
document.write( "the x's will have equal coefficients with\r\n" );
document.write( "opposite signs:\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "That will give \r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "Add the two equations term by term:\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "Substitute back in either of the original equations:\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "EDWIN
\n" );
document.write( "![\"\"](\"/images/stars/stars-13.gif\")
