document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=793867>Question 793867</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8x + 8y = -16<BR>\n" );
document.write( "8x + 9y = -8<BR>\n" );
document.write( "  solve using elimination </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #480471 by </B><A HREF=/tutors/aboutme.mpl?userid=waynest><B>waynest(281)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=waynest><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=480471\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">   8x + 8y = -16<BR>\n" );
document.write( "-(8x + 9y = -8)<BR>\n" );
document.write( "=      -y = -8<BR>\n" );
document.write( "        y = 8<BR>\n" );
document.write( "solve for x in the first equation<BR>\n" );
document.write( "8x + 8(8) = -16<BR>\n" );
document.write( "8x + 64 = -16<BR>\n" );
document.write( "8x + 64 - 64 = -16 - 64<BR>\n" );
document.write( "8x = -80<BR>\n" );
document.write( "8x/8 = -80/8<BR>\n" );
document.write( "x = -10\r<BR>\n" );
document.write( "\n" );
document.write( "check:<BR>\n" );
document.write( "8(-10) + 8(8) = -16<BR>\n" );
document.write( "-80 + 64 = -16<BR>\n" );
document.write( "-16 = -16<BR>\n" );
document.write( "8(-10) + 9(8) = -8<BR>\n" );
document.write( "-80 + 72 = -8<BR>\n" );
document.write( "-8 = -8 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );