document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=833506>Question 833506</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There's mom, dad, brother, and me.  The sum of our ages is 83.  6 times dad equals 7 times mom and she is 3 times me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #502591 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=502591\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There's mom, dad, brother, and me. The sum of our ages is 83. 6 times dad equals 7 times mom and she is 3 times me.<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "m + d + b + u = 83<BR>\n" );
document.write( "6d = 7m<BR>\n" );
document.write( "m = 3u<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Substitute for \"d\" and \"u\":<BR>\n" );
document.write( "m + (7/6)m + b + (1/3)m = 83<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "2m + 7m + 6b + 2m = 6*83<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "11m + 6b = 6*83<BR>\n" );
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document.write( "Comment: You need one more equation relating m and b to solve this equation.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "======= </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );