document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=512388>Question 512388</A>: <I><SPAN STYLE=\"word-break: break-all;\"> And this one I'm really confused about. I gor the answer Fred is 14yo but it tells me the answer is wrong.<BR>\n" );
document.write( "Fred is 3 years older than his sister Mary. In 7 years she will be six-sevenths of his age. How old is Fred?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342614 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=342614\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Fred is 3 years older than his sister Mary. In 7 years she will be six-sevenths of his age. How old is Fred?\r<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "f = m + 3<BR>\n" );
document.write( "(m+7) = (6/7)(f+7)<BR>\n" );
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document.write( "Substitute for \"m\" and solve for \"f\":<BR>\n" );
document.write( "f-3+7 = (6/7)(f+7)<BR>\n" );
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document.write( "7(f+4) = 6(f+7)<BR>\n" );
document.write( "7f + 28 = 6f + 42<BR>\n" );
document.write( "f = 14 yrs (Fred's age now)<BR>\n" );
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document.write( "Note: You are correct.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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