document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1084727>Question 1084727</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, Sorry if this has the wrong topic, I wasn't sure which one to choose, the question I am stuck on is;\r<BR>\n" );
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document.write( "Rx+Ro= ((Rf-Ri)/Rf)(Rc+Ro)\r<BR>\n" );
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document.write( "By multiplying the rhs brackets and collecting terms, show that:\r<BR>\n" );
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document.write( "Rx=((Rf-Ri)/Rf)Rc-(RoRi/Rf)\r<BR>\n" );
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document.write( "I just can't get my head around it at all, I can't even get started, any help would be greatly appreciated!\r<BR>\n" );
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document.write( "Terms are Rx, Rf, Ri, Ro </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698855 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=698855\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'm going to substitute variables to make it more readable and then substitute back at the end.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=R%5Bx%5D ALIGN=MIDDLE  ALT=\"A=R%5Bx%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=R%5Bi%5D ALIGN=MIDDLE  ALT=\"D=R%5Bi%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "So,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB=%28%28C-D%29%2FC%29%28E%2BB%29 ALIGN=MIDDLE  ALT=\"A%2BB=%28%28C-D%29%2FC%29%28E%2BB%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=%28C%5E2%2BBC-CD-BD-BC%29%2FC%29 ALIGN=MIDDLE  ALT=\"A=%28C%5E2%2BBC-CD-BD-BC%29%2FC%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=%28C%5E2-CD-BD%29%2FC%29 ALIGN=MIDDLE  ALT=\"A=%28C%5E2-CD-BD%29%2FC%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "What are you looking to get to?<BR>\n" );
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