document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=535335>Question 535335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a man when asked by his niece how old he was, he replied, My age is now 4x yours, but 5yrs ago it was 5x yours. (he is 80 but how do you solve it)<BR>\n" );
document.write( "uncle's age = u , niece's age = n<BR>\n" );
document.write( "u = 4n ...(i)<BR>\n" );
document.write( "u-5 = 5(n-5) ...(ii) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #351899 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=351899\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "a man when asked by his niece how old he was, he replied, My age is now 4x yours, but 5yrs ago it was 5x yours. (he is 80 but how do you solve it)<BR>\n" );
document.write( "uncle's age = u , niece's age = n<BR>\n" );
document.write( "u = 4n ...(i)<BR>\n" );
document.write( "u-5 = 5(n-5) ...(ii)\r<BR>\n" );
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document.write( "Good job creating the equations, but you need to expand on eq (ii)\r<BR>\n" );
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document.write( "u = 4n ...(i)<BR>\n" );
document.write( "u-5 = 5(n-5) ...u - 5 = 5n - 25 ...... u - 5n = - 20 ------ (ii)\r<BR>\n" );
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document.write( "Now, since u = 4n [eq (i)], we can substitute this value for u in eq (ii), as follows:\r<BR>\n" );
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document.write( "4n - 5n = - 20\r<BR>\n" );
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document.write( "- n = - 20\r<BR>\n" );
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document.write( "n, or niece's age = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-+20%29%2F-+1 ALIGN=MIDDLE  ALT=\"%28-+20%29%2F-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or 20 \r<BR>\n" );
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document.write( "u = 4(20) ------ Substituting 20 for n in eq (i)\r<BR>\n" );
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document.write( "u, or uncle's age = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2880%29 ALIGN=MIDDLE  ALT=\"highlight_green%2880%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Send comments and “thank-yous” to “D” at  MathMadEzy@aol.com </SPAN>\n" );
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