document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=423388>Question 423388</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemistry teacher needs to strengthen a 12% solution of acid to strength s by mixing it with pure acid. How much pure acid must be added to 100ml of the 12% solution to make acid strength s?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319239 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=319239\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 100(.12)+x=s(100+x)<BR>\n" );
document.write( "12+x=100s+sx<BR>\n" );
document.write( "x-sx=100s-12<BR>\n" );
document.write( "x(1-s)=100s-12<BR>\n" );
document.write( "x=100s-12/1-s.. </SPAN>\n" );
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