document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169367>Question 169367</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 3 gallons of punch that is  7% alcohol. A friend pours in 3 gallons of their punch and now the combined mix is 9% alcohol. What % alcohol was the added 3 gallons of punch? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124865 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=124865\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x be the % of alcohol in the added 3 gallons<BR>\n" );
document.write( ":<BR>\n" );
document.write( ".07(3)+x(3)=.09(6)<BR>\n" );
document.write( ":<BR>\n" );
document.write( ".21+3x=.54<BR>\n" );
document.write( ":<BR>\n" );
document.write( "3x=.33<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=11%29 ALIGN=MIDDLE  ALT=\"highlight%28x=11%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > percentage of alcohol in added 3 gallons </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );