document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170337>Question 170337</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321269470/algebrahomeworkh>Introductory Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve by elimination\r<BR>\n" );
document.write( "\n" );
document.write( "8x + 7y = -16<BR>\n" );
document.write( "6x - 3y = -12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125728 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=125728\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8x + 7y = -16 multiply by 3<BR>\n" );
document.write( "6x - 3y = -12 multiply by -4 & add<BR>\n" );
document.write( "24x+21y=-48<BR>\n" );
document.write( "-24x+12y=48<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "33y=0<BR>\n" );
document.write( "y=0 ans.<BR>\n" );
document.write( "8x+7*0=-16<BR>\n" );
document.write( "8x=-16<BR>\n" );
document.write( "x=-16/8<BR>\n" );
document.write( "x=-2 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "6*-2-3*0=-12<BR>\n" );
document.write( "-12-0=-12<BR>\n" );
document.write( "-12=-12<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );