document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133105>Question 133105</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve.\r<BR>\n" );
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document.write( "3/x = 7/x - 1/3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97329 by </B><A HREF=/tutors/aboutme.mpl?userid=nycsharkman><B>nycsharkman(136)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nycsharkman><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=97329\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It's called a rational expression because the word rational means fraction.\r<BR>\n" );
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document.write( "3/x = 7/x - 1/3\r<BR>\n" );
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document.write( "Multiply everything on both sides of the equation by the LCD.\r<BR>\n" );
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document.write( "Our LCD is 3x.\r<BR>\n" );
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document.write( "3/x times 3x = 9\r<BR>\n" );
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document.write( "7/x times 3x = 21\r<BR>\n" );
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document.write( "-1/3 times 3x = -x\r<BR>\n" );
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document.write( "We have removed all fractions.  This is the reason why we must multiply by the LCD.\r<BR>\n" );
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document.write( "9 = 21 - x\r<BR>\n" );
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document.write( "9 - 21 = -x\r<BR>\n" );
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document.write( "-12 = -x\r<BR>\n" );
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document.write( "-12/-1 = x\r<BR>\n" );
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document.write( "12 = x\r<BR>\n" );
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document.write( "  </SPAN>\n" );
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