document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=91766>Question 91766</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618250182/algebrahomeworkh>McDougal Littell Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> x<BR>\n" );
document.write( "- + 13 = 20<BR>\n" );
document.write( "2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66640 by </B><A HREF=/tutors/aboutme.mpl?userid=mathispowerful><B>mathispowerful(115)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathispowerful><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=66640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your goal, when solving a one-variable equation, is to isolate x, to do that you do opposite operations.\r<BR>\n" );
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document.write( "The first step is to eliminate 13 (constant term).\r<BR>\n" );
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document.write( "The opposite operation of \"+\" is \"-\", so I minus 13 on both sides of equation:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F2 ALIGN=MIDDLE  ALT=\"x%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > +13 - 13 = 20 - 13\r<BR>\n" );
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document.write( "               -<BR>\n" );
document.write( " <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F2 ALIGN=MIDDLE  ALT=\"x%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 7\r<BR>\n" );
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document.write( "now to get answer, do the opposite operation again, the opposite of division<BR>\n" );
document.write( "is multiplication:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2F2%29%2A2+=+7%2A2 ALIGN=MIDDLE  ALT=\"%28x%2F2%29%2A2+=+7%2A2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so x = 14   <==== answer. </SPAN>\n" );
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