document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=38082>Question 38082</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system by addition\r<BR>\n" );
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document.write( "5x + 9y = -12<BR>\n" );
document.write( "x - 2y = 10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #23610 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=23610\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From\r<BR>\n" );
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document.write( "5x + 9y = -12<BR>\n" );
document.write( "x - 2y = 10<BR>\n" );
document.write( "let us multiply the bottom equation by (-5) and add it to the top one...<BR>\n" );
document.write( "5x + 9y = -12<BR>\n" );
document.write( "-5x + 10y = -50<BR>\n" );
document.write( "which yields<BR>\n" );
document.write( "19y = -62<BR>\n" );
document.write( "and the not-so-nice<BR>\n" );
document.write( "y = -62/19<BR>\n" );
document.write( "Now plug that into the second equation to find x...<BR>\n" );
document.write( "x - 2(-62/19) = 10<BR>\n" );
document.write( "x + 124/19 = 10<BR>\n" );
document.write( "x + 124/19 = 190/19<BR>\n" );
document.write( "x = 66/19 </SPAN>\n" );
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