document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=178208>Question 178208</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1602773033/algebrahomeworkh>saxon algebra 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Help!<BR>\n" );
document.write( "Solve the system of equations.<BR>\n" );
document.write( "x+y+z=4<BR>\n" );
document.write( "2x+3y-z=18<BR>\n" );
document.write( "3x-y+2z=-2\r<BR>\n" );
document.write( "\n" );
document.write( "The -z confuses me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #133168 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=133168\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the system of equations.<BR>\n" );
document.write( "x+y+z=4<BR>\n" );
document.write( "2x+3y-z=18<BR>\n" );
document.write( "3x-y+2z=-2<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "Eliminate z.<BR>\n" );
document.write( "Add the 1st and 2nd eqns.<BR>\n" );
document.write( "x + y + z = 4<BR>\n" );
document.write( "2x+3y - z = 18<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "3x+4y = 22<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Multiply the 2nd eqn by 2, then add it to the 3rd<BR>\n" );
document.write( "4x + 6y - 2z = 36<BR>\n" );
document.write( "3x - 1y + 2z = -2<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "7x + 5y = 34<BR>\n" );
document.write( "Now there are 2 eqns in x and y.<BR>\n" );
document.write( "3x + 4y = 22<BR>\n" );
document.write( "7x + 5y = 34<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Multiply the 1st by 5, and the 2nd by 4<BR>\n" );
document.write( "15x + 20y = 110<BR>\n" );
document.write( "28x + 20y = 136<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Subtract<BR>\n" );
document.write( "-13x = -26<BR>\n" );
document.write( "x = 2<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Sub x into 3x + 4y = 22<BR>\n" );
document.write( "3*2 + 4y = 22<BR>\n" );
document.write( "4y = 16<BR>\n" );
document.write( "y = 4<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Sub x and y into x+y+z=4<BR>\n" );
document.write( "2 + 4 + z = 4<BR>\n" );
document.write( "z = -2<BR>\n" );
document.write( "----------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );