document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=848757>Question 848757</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Dan and Linda have a combined age of 60. In four years, Dan will be three times as old as Linda. What are there current ages? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #511264 by </B><A HREF=/tutors/aboutme.mpl?userid=harpazo><B>harpazo(655)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=harpazo><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=harpazo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=511264\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "D + L = 60....Equation A<BR>\n" );
document.write( "D + 4 = 3(L + 4)...Equation B\r<BR>\n" );
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document.write( "Solve Equation A for D and then plug into Equation B to find L. \r<BR>\n" );
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document.write( "D = 60-L\r<BR>\n" );
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document.write( "60-L + 4 = 3L + 12\r<BR>\n" );
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document.write( "64-L = 3L+12\r<BR>\n" );
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document.write( "-L-3L = 12-64\r<BR>\n" );
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document.write( "-4L = -52\r<BR>\n" );
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document.write( "L = -52/-4\r<BR>\n" );
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document.write( "L = 13\r<BR>\n" );
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document.write( "Linda is 13. \r<BR>\n" );
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document.write( "To find Dan's age, plug 13 for L in Equation A or B (your choice). \r<BR>\n" );
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document.write( "I will use Equation A.\r<BR>\n" );
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document.write( "D + L = 60\r<BR>\n" );
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document.write( "D + 13 = 60\r<BR>\n" );
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document.write( "D = 60-13\r<BR>\n" );
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document.write( "D = 47\r<BR>\n" );
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document.write( "Dan is 47.  </SPAN>\n" );
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