document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=808234>Question 808234</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a jar of red, green and blue marbles,all but 15 are red marbles,all but 21 are green,and all but 14 are blue.how many marbles are there in the jar?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #486900 by </B><A HREF=/tutors/aboutme.mpl?userid=Finavon><B>Finavon(81)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Finavon><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=486900\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Main difficulty is writing the equations.<BR>\n" );
document.write( "Let number of marbles be R, G and B<BR>\n" );
document.write( "G+B=15 (1) (ie non red)<BR>\n" );
document.write( "R+B=21 (non green)<BR>\n" );
document.write( "R+G=14 (non blue)<BR>\n" );
document.write( "add all together:<BR>\n" );
document.write( "2G+2B+2R=50<BR>\n" );
document.write( "So R+G+B=25 (2)<BR>\n" );
document.write( "There are 25 marbles in total<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "Substitute (1) in (2): R+15=25<BR>\n" );
document.write( "So R=10<BR>\n" );
document.write( "Then B=11 and G=4<BR>\n" );
document.write( "With a total of 25 </SPAN>\n" );
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