document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=58368>Question 58368</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "I can do this problem by sight; meaning I know what numbers will work by looking at it, I do not know how to do them if I couldn't do it by sight though.\r<BR>\n" );
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document.write( " The problem is:<BR>\n" );
document.write( "                             x-2y=4\r<BR>\n" );
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document.write( "I did x=4 and y=0.\r<BR>\n" );
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document.write( "I know by looking at this that x could equal zero and y could equal a -4.\r<BR>\n" );
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document.write( "I do not know how to do the problem other than by figuring out in my head what 2 numbers would leave me with the answer of 4.\r<BR>\n" );
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document.write( "I hope you can help me. Thank you.  \r<BR>\n" );
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document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39981 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=39981\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X-2Y=4<BR>\n" );
document.write( "X=2Y+4 SETTING X=0 WE GET<BR>\n" );
document.write( "0=2Y+4<BR>\n" );
document.write( "2Y=-4<BR>\n" );
document.write( "Y=-4/2<BR>\n" );
document.write( "Y=-2 WHEN X=0 THEN Y=-2<BR>\n" );
document.write( "SETTING Y=5 WE GET<BR>\n" );
document.write( "X-2*5=4<BR>\n" );
document.write( "X-10=4<BR>\n" );
document.write( "X=4+10<BR>\n" );
document.write( "X=14 WHEN Y=5 THEN X=14<BR>\n" );
document.write( " </SPAN>\n" );
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