document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=824992>Question 824992</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Perform in order (a), (b), and (c) on the augmented matrix.<BR>\n" );
document.write( "(a) R2= -2r1 + r2<BR>\n" );
document.write( "(b) R3= -2r1 + r3<BR>\n" );
document.write( "(c) R3= 6r2 + r3<BR>\n" );
document.write( "[1 -3 -5 | -2]<BR>\n" );
document.write( "[2 -5 -4 | 5]<BR>\n" );
document.write( "[2 5 4 | 6]  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #496971 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3758)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jsmallt9><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=496971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C+4%2C+1%2C+-3%2C+-5%2C+-2%2C%0D%0A++++++++++++++++2%2C+-5%2C+-4%2C+5%2C%0D%0A++++++++++++++++2%2C+5%2C+4%2C+6%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now just do what it says:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D=+-2r%5B1%5D+%2B+r%5B2%5D ALIGN=MIDDLE  ALT=\"r%5B2%5D=+-2r%5B1%5D+%2B+r%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "means: Replace row 2 with the sum of (-2 times row 1) and row 2.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B3%5D=+-2r%5B1%5D+%2B+r%5B3%5D ALIGN=MIDDLE  ALT=\"r%5B3%5D=+-2r%5B1%5D+%2B+r%5B3%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "means: Replace row 3 with the sum of (-2 times row 1) and row 3.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B3%5D=+6r%5B2%5D+%2B+r%5B3%5D ALIGN=MIDDLE  ALT=\"r%5B3%5D=+6r%5B2%5D+%2B+r%5B3%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "means: Replace row 3 with the sum of (6 times row 2) and row 3.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );