document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=766050>Question 766050</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I can't figure out this question, (-10+a)/30=-1<BR>\n" );
document.write( "This is where I got so far, -10/30 + a/30 = -1, <BR>\n" );
document.write( "-1/3 + a/30 = -1, -1/3 +1 = a/30, 2/3 = a/30,<BR>\n" );
document.write( "a = 2/3 (30), a = 20, but the answer is -20.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466620 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466620\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "Simple sign mistake.  You said:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{-10}{30}\ +\ \frac{a}{30}\ =\ -1\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{-1}{3}\ +\ \frac{a}{30}\ =\ -1\">\r<BR>\n" );
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document.write( "which was all ok, but then you said:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{-1}{3}\ +\ 1\ =\ \frac{a}{30}\">\r<BR>\n" );
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document.write( "But you should have said:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{-1}{3}\ +\ 1\ =\ -\frac{a}{30}\">\r<BR>\n" );
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document.write( "And you will find that it works out to the correct answer from here.\r<BR>\n" );
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document.write( "Having said that, I'd like to point out that you did a great deal of extra work.\r<BR>\n" );
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document.write( "Start over from the beginning:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{-10\,+\,a}{30}\ =\ -1\">\r<BR>\n" );
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document.write( "But this time as a first step, multiply both sides by 30:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ -10\ +\ a\ =\ -30\">\r<BR>\n" );
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document.write( "Then just add 10 to both sides:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ a\ =\ -20\">\r<BR>\n" );
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document.write( "as expected.\r<BR>\n" );
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document.write( "Lesson:  Things usually get simpler if you can find a multiplier that gets rid of all your denominators.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "<font face=\"Math1\" size=\"+2\">Egw to Beta kai to Sigma</font><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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