document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=684180>Question 684180</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello tutor, can you help me on this problem? Thank you!\r<BR>\n" );
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document.write( "Tom is now 25 years older than his son. In 10 years, Tom will be 5 years younger than 3 times his son's age. How old is Tom now?\r<BR>\n" );
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document.write( "Let Tom be N years old now.\r<BR>\n" );
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document.write( "Thank you again! :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #423965 by </B><A HREF=/tutors/aboutme.mpl?userid=lmeeks54><B>lmeeks54(111)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lmeeks54><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=lmeeks54><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=423965\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let T = age of Tom now<BR>\n" );
document.write( "Let S = age of Tom's son now<BR>\n" );
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document.write( "Given:<BR>\n" );
document.write( "T = S + 25  (Tom is 25 yrs older than his son is now)<BR>\n" );
document.write( "T + 10 = 3S - 5 (in 10 yrs, Tom will be 5 yrs younger than 3x his son's age)<BR>\n" );
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document.write( "Method: with 2 equations and 2 variables, express one of the variables in terms of the other and solve:<BR>\n" );
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document.write( "Take the equation with T = S + 25 and plug S + 25 into the 2nd equation for T:<BR>\n" );
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document.write( "(S + 25) + 10 = 3S - 5<BR>\n" );
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document.write( "Put all the S terms on one side and group all like-terms on the other:<BR>\n" );
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document.write( "S + 35 = 3S - 5<BR>\n" );
document.write( "40 = 2S<BR>\n" );
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document.write( "divide both sides by 2:<BR>\n" );
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document.write( "20 = S<BR>\n" );
document.write( "T = S + 25<BR>\n" );
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document.write( "Answer:<BR>\n" );
document.write( "T = 45<BR>\n" );
document.write( "S = 20<BR>\n" );
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document.write( "Lee<BR>\n" );
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