document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=790564>Question 790564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum is 100 years. Can you tell me my age in years? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #479205 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=479205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum is 100 years. Can you tell me my age in years?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "s = 7g<BR>\n" );
document.write( "f = 12g<BR>\n" );
document.write( "f + s + g = 100<BR>\n" );
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document.write( "Substitute for s and for f and solve for \":<BR>\n" );
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document.write( "12g + 7g + g = 100<BR>\n" );
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document.write( "20g = 100<BR>\n" );
document.write( "g = 5 (grandson's age now)<BR>\n" );
document.write( "s = 7g = 35 (son's age now)<BR>\n" );
document.write( "f = 12g = 60 (father's age now)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );