document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=774229>Question 774229</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are two  classroom A and B .if 10 students are sent  from A to B, the  number of students in each room become the same .if 20 students are sent from B to A , the number of students in A becomes double the number of students in B .Find the number of students in each room . </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #472232 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=472232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are two classroom A and B .<BR>\n" );
document.write( "if 10 students are sent from A to B, the number of students in each room become the same .<BR>\n" );
document.write( "if 20 students are sent from B to A , the number of students in A becomes double the number of students in B .<BR>\n" );
document.write( "Find the number of students in each room .<BR>\n" );
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document.write( "Let a = original no. of students in A<BR>\n" );
document.write( "Let b = original no. of students in B<BR>\n" );
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document.write( "Write an equation for each statement, put eq in standard form<BR>\n" );
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document.write( "\"There are two classroom A and B .if 10 students are sent from A to B, the number of students in each room become the same .\"<BR>\n" );
document.write( "a - 10 = b + 10<BR>\n" );
document.write( "a - b = 10 + 10<BR>\n" );
document.write( "a - b = 20<BR>\n" );
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document.write( "\"If 20 students are sent from B to A , the number of students in A becomes double the number of students in B <BR>\n" );
document.write( "A + 20 = 2(B-20)<BR>\n" );
document.write( "A + 20 = 2b - 40<BR>\n" );
document.write( "A - 2B = -40 - 20<BR>\n" );
document.write( "A - 2B = -60<BR>\n" );
document.write( "Subtract the above equation from the 1st equation<BR>\n" );
document.write( "a - b = 20<BR>\n" );
document.write( "a - 2b = -60<BR>\n" );
document.write( "--------------subtacting eliminates a, find b<BR>\n" );
document.write( "b = 80 students in B<BR>\n" );
document.write( "and<BR>\n" );
document.write( "a - 80 = 20<BR>\n" );
document.write( "a = 20 + 80<BR>\n" );
document.write( "a = 100 students in A<BR>\n" );
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document.write( "You should check the solutions in both statements\r<BR>\n" );
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document.write( " </SPAN>\n" );
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