document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=240611>Question 240611</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you solve by elimination using multiplication:\r<BR>\n" );
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document.write( "-3x+4y=12<BR>\n" );
document.write( "2x+y=-8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #176268 by </B><A HREF=/tutors/aboutme.mpl?userid=unlockmath><B>unlockmath(1688)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=unlockmath><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=unlockmath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=176268\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hello, <BR>\n" );
document.write( "Let's multiply the second equation by -4 which will give us: \r<BR>\n" );
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document.write( "-3x+4y=12<BR>\n" );
document.write( "-8x-4y=32\r<BR>\n" );
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document.write( "Now we can add both equations to give us: <BR>\n" );
document.write( "-11x=44\r<BR>\n" );
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document.write( "Now we can divide both sides by -11 to give us:<BR>\n" );
document.write( "x=-4<BR>\n" );
document.write( "Plug in -4 to the original equation to find y. <BR>\n" );
document.write( "-3(-4)+4y=12<BR>\n" );
document.write( "12+4y=12 Subtract 12 to both sides<BR>\n" );
document.write( "4y=0<BR>\n" );
document.write( "y=0  and x=-4<BR>\n" );
document.write( "There you go. To see if these are correct plug the answers into both equation and it should come out good. <BR>\n" );
document.write( "RJ Toftness<BR>\n" );
document.write( "www.math-unlock.com </SPAN>\n" );
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