document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=844969>Question 844969</A>: <I><SPAN STYLE=\"word-break: break-all;\"> C has twice as many books as B.<BR>\n" );
document.write( "If C gives B 5 books then C has 10 more books than B<BR>\n" );
document.write( "How many books does C have.\r<BR>\n" );
document.write( "\n" );
document.write( "I've tries this by saying that C=2b and that c-5=b+10.  <BR>\n" );
document.write( "I've come up with 30 but know when i solve it using 30 that's wrong.<BR>\n" );
document.write( "I can figure out that the correct answer is 40, but don't know what I'm doing that I can't figure out the correct equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #509077 by </B><A HREF=/tutors/aboutme.mpl?userid=LinnW><B>LinnW(1048)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LinnW><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=LinnW><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=509077\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c=2b and that c-5=b+10<BR>\n" );
document.write( "work on the second equation<BR>\n" );
document.write( "add 5 to each side<BR>\n" );
document.write( "c = b + 15<BR>\n" );
document.write( "since c=2b and c = b + 15<BR>\n" );
document.write( "2b = b + 15<BR>\n" );
document.write( "add -b to each side<BR>\n" );
document.write( "b = 15<BR>\n" );
document.write( "c = 2*15 = 30<BR>\n" );
document.write( "Test c-5 = b+10<BR>\n" );
document.write( "30-5=15+10<BR>\n" );
document.write( "25=25\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );