document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=687341>Question 687341</A>: <I><SPAN STYLE=\"word-break: break-all;\">  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #450654 by </B><A HREF=/tutors/aboutme.mpl?userid=superbrainiac><B>superbrainiac(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=superbrainiac><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=450654\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Right, so...\r<BR>\n" );
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document.write( "A.) 4x + 8y =20<BR>\n" );
document.write( "    4x5=20<BR>\n" );
document.write( "    So now 4x is cancelled out and 20 is subtracted from 20.<BR>\n" );
document.write( "    The result is 0.<BR>\n" );
document.write( "    8y=0<BR>\n" );
document.write( "    What can you substitute y with to get 0?<BR>\n" );
document.write( "    0?<BR>\n" );
document.write( "    8x0=0<BR>\n" );
document.write( "    In result:<BR>\n" );
document.write( "    x=5, y=0<BR>\n" );
document.write( "    That is just one of many answers.\r<BR>\n" );
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document.write( "B.) -4x + 2y =30<BR>\n" );
document.write( "    -4x-4=16<BR>\n" );
document.write( "    Now subtract that 16 from 30.<BR>\n" );
document.write( "    Surprise! You get 14 (mental math;)<BR>\n" );
document.write( "    2y=14?<BR>\n" );
document.write( "    Perhaps 7=y?<BR>\n" );
document.write( "    YES! 2 times 7 equals fourteen.<BR>\n" );
document.write( "    This gives us one of many possible results, (-4,7)\r<BR>\n" );
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document.write( "You're welcome. </SPAN>\n" );
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