document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=276320>Question 276320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i do -2x+4y=0<BR>\n" );
document.write( "            -8x+y=15 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #203483 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=203483\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Multiply the first equation by -4. You get\r<BR>\n" );
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document.write( "8x-16y=0<BR>\n" );
document.write( "You leave the second equation intact:<BR>\n" );
document.write( "-8x+y=15\r<BR>\n" );
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document.write( "Now, add the equations:\r<BR>\n" );
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document.write( "-15y=15<BR>\n" );
document.write( "This implies y=-1.\r<BR>\n" );
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document.write( "Put y=-1 into the first equation to get -2x-4=0 this implies x=-2.<BR>\n" );
document.write( "You can verify that (-2,-1) works by substituting into the second equation:\r<BR>\n" );
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document.write( "16-1=15; 15=15.  </SPAN>\n" );
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