document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=448959>Question 448959</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with writing an equation for the following problem\"<BR>\n" );
document.write( "Pan is 14 and her dad is 37.  In how many years will Pan's dad be twice an old as she will be?\r<BR>\n" );
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document.write( "I worked it the \"old fashion\" way--wrote down- 14 and 37, 15 and 38, 16 and 39, etc.  I KNOW the answer is 9 years--but how do I write an equation to get that answer?  Thank you, Linda </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308842 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=308842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pan is 14 and her dad is 37.  In how many years will Pan's dad be twice an old as she will be?<BR>\n" );
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document.write( "The easy way:<BR>\n" );
document.write( "The difference is 23 (37-14)<BR>\n" );
document.write( "When Pan is 23, he'll be 2x<BR>\n" );
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document.write( "The hard way:<BR>\n" );
document.write( "D - P = 23<BR>\n" );
document.write( "D = P + 23<BR>\n" );
document.write( "D + n = 2(P + n) n years from now<BR>\n" );
document.write( "Sub for D<BR>\n" );
document.write( "P + 23 + n = 2P + 2n<BR>\n" );
document.write( "23 = n<BR>\n" );
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