document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141290>Question 141290</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh>prentice hall algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve by using a system of two equations in two variables?\r<BR>\n" );
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document.write( "Five years ago, Tom was one third as old as his father was then.  In 5 years, Tom will be half as old as his father will be then.  Find their ages now. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #102978 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=102978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=Tom and y=father\r<BR>\n" );
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document.write( "\"Five years ago, Tom was one third as old as his father was then\" __ 3(x-5)=y-5 __ 3x-15=y-5 __ 3x-10=y\r<BR>\n" );
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document.write( "\"In 5 years, Tom will be half as old as his father will be then\" __ 2(x+5)=y+5 __ 2x+10=y+5 __ 2x+5=y\r<BR>\n" );
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document.write( "substituting __ 3x-10=2x+5 __ x=15\r<BR>\n" );
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document.write( "substituting __ 2(15)+5=y __ 35=y </SPAN>\n" );
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