document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=176236>Question 176236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use linear combinations to solve the system of linear equations.<BR>\n" );
document.write( "y=x-9<BR>\n" );
document.write( "x+8y=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #131336 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=131336\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use linear combinations to solve the system of linear equations.<BR>\n" );
document.write( "y=x-9<BR>\n" );
document.write( "x+8y=0<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Rearrange:<BR>\n" );
document.write( "x - y = 9<BR>\n" );
document.write( "x + 8y = 0<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Subtract 1st from 2nd to solve for \"y\":<BR>\n" );
document.write( "9y = -9<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Substitute to get x = y + 9 = -1+9 = 8\r<BR>\n" );
document.write( "\n" );
document.write( "------------------------------------<BR>\n" );
document.write( "Ans: (8,-1)<BR>\n" );
document.write( "================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );