document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=859468>Question 859468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given that ab+c=k and ac+k=n,express 'a' in terms of b,c and n only. Hence or otherwise find the value of 'a' if b=0.75, c=0.25 and n=6.5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #517780 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=517780\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You want to eliminate k.  Solve one equation for k, and substitute this into the other equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=n-ac ALIGN=MIDDLE  ALT=\"k=n-ac\"   DISABLED_style= \"max-width:90%; height:auto;\" > from second equation.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab%2Bc=k ALIGN=MIDDLE  ALT=\"ab%2Bc=k\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab%2Bc=n-ac ALIGN=MIDDLE  ALT=\"ab%2Bc=n-ac\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab%2Bac%2Bc=n ALIGN=MIDDLE  ALT=\"ab%2Bac%2Bc=n\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab%2Bac=n-c ALIGN=MIDDLE  ALT=\"ab%2Bac=n-c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%28b%2Bc%29=n-c ALIGN=MIDDLE  ALT=\"a%28b%2Bc%29=n-c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28a=%28n-c%29%2F%28b%2Bc%29%29 ALIGN=MIDDLE  ALT=\"highlight%28a=%28n-c%29%2F%28b%2Bc%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Evaluate then, this expression according to the variable assignments:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=%286.5-0.25%29%2F%280.75%2B0.25%29 ALIGN=MIDDLE  ALT=\"a=%286.5-0.25%29%2F%280.75%2B0.25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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