document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=681697>Question 681697</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having difficulty setting up this problem. I have to solve by using a system of equations.\r<BR>\n" );
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document.write( "On the first day of school, the percentage of boys in a particular class is 60%.  During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys.  Find the number of boys and girls in the class on the first day of school.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #422789 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=422789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x is the entire class<BR>\n" );
document.write( "b = .60x<BR>\n" );
document.write( "The moving away of 6 girls and adding of 6 boys does not change x<BR>\n" );
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document.write( "however,<BR>\n" );
document.write( "b+6 = .75x<BR>\n" );
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document.write( "Substitution<BR>\n" );
document.write( ".60x + 6 = .75x<BR>\n" );
document.write( "6 = .75x - .60x<BR>\n" );
document.write( "6 = .15x<BR>\n" );
document.write( "x = 40 in the class<BR>\n" );
document.write( ".60(40) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2824%29 ALIGN=MIDDLE  ALT=\"highlight_green%2824%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > boys <BR>\n" );
document.write( "40 - 24 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2816%29 ALIGN=MIDDLE  ALT=\"highlight_green%2816%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > girls<BR>\n" );
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