document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=958820>Question 958820</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sana is senior to moona by 18 years. After 6years sana will be twice as old as mona. Find mona's present age </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585996 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=585996\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "M=Mona's age; S= Sana's age=M+18<BR>\n" );
document.write( "S+6yr=2(M+6yr) Substitute for S.<BR>\n" );
document.write( "M+18yr+6yr=2M+12yr<BR>\n" );
document.write( "M+24yr=2M+12yr Subtract M+12yr from each side.<BR>\n" );
document.write( "12yr=M ANSWER: Mona is currently 12 years old<BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "S=M+18yrs=12yr+18yr=30yr Sana is 30 years old.<BR>\n" );
document.write( "S+6yrs=2(M+6yrs)<BR>\n" );
document.write( "30yr+6yr=2(12yr+6yr)<BR>\n" );
document.write( "36yr=2(18yr)<BR>\n" );
document.write( "36yr=36yr\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );