document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321958>Question 321958</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem, thanks:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Mary is 3 times as old as her son. In 12 years Mary's age will be one year less than twice her sons age. How old is Mary? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230475 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230475\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let son's age be x<BR>\n" );
document.write( "Mary's age = 3x<BR>\n" );
document.write( "..<BR>\n" );
document.write( "12 years later<BR>\n" );
document.write( "son will be x+12<BR>\n" );
document.write( "Mary will be 3x+12<BR>\n" );
document.write( "..<BR>\n" );
document.write( "3x+12 = 2(x+12)-1<BR>\n" );
document.write( "3x+12=2x+24-1<BR>\n" );
document.write( "3x-2x=24-12-1<BR>\n" );
document.write( "x=11 --- son's age<BR>\n" );
document.write( "Mary's age = 3*11 = 33 years </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );