document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=106510>Question 106510</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Im suppose to show how \r<BR>\n" );
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document.write( "a-b/a+b = c-d/c+d\r<BR>\n" );
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document.write( "is proportional to\r<BR>\n" );
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document.write( "a/b=c/d </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #77517 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=77517\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a-b/a+b = c-d/c+d<BR>\n" );
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document.write( "ac+ad-bc-bd=ac-ad+bc-bd multiply both sides by (a+b)(c+d) to eliminate fractions.<BR>\n" );
document.write( "ad-bc=-ad+bc cancel off ac and bd<BR>\n" );
document.write( "2ad=2bc add ad and bc to each side<BR>\n" );
document.write( "ad=bc divide each side by 2<BR>\n" );
document.write( "a/b=c/d divide each side by bd.<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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