document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=716028>Question 716028</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help answer, thanks\r<BR>\n" );
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document.write( "In five years John's age will be three years more than two thirds of Terry's age. Four years ago, the sum of their ages is 20. How old is each now?<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 #439698 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=439698\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let j=john's age now<BR>\n" );
document.write( "Let t=terry's age now\r<BR>\n" );
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document.write( "Each person___________4years ago_____________now_____________in 5 years<BR>\n" );
document.write( "john__________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j-4 ALIGN=MIDDLE  ALT=\"j-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >________________j_______________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j%2B5=3%28t%2B5%29 ALIGN=MIDDLE  ALT=\"j%2B5=3%28t%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "terry_________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t-4 ALIGN=MIDDLE  ALT=\"t-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >________________t_______________<BR>\n" );
document.write( "Further data________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28j-4%29%2B%28t-4%29=20 ALIGN=MIDDLE  ALT=\"%28j-4%29%2B%28t-4%29=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >___________________________\r<BR>\n" );
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document.write( "The information shown in the table is directly from the problem description.  Two variables as unknowns were assigned and they occur in two equations.  \r<BR>\n" );
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document.write( "The system to solve is this one:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j%2B5=3%28t%2B5%29 ALIGN=MIDDLE  ALT=\"j%2B5=3%28t%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28j-4%29%2B%28t-4%29=20 ALIGN=MIDDLE  ALT=\"%28j-4%29%2B%28t-4%29=20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Which should first be simplified to ....\r<BR>\n" );
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document.write( "SYSTEM TO SOLVE:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28j-t=-8%29 ALIGN=MIDDLE  ALT=\"highlight%28j-t=-8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28j%2Bt=28%29 ALIGN=MIDDLE  ALT=\"highlight%28j%2Bt=28%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Easiest way from there is add both equations to eliminate t.<BR>\n" );
document.write( "2j=36<BR>\n" );
document.write( "j=18\r<BR>\n" );
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document.write( "Use either equation to find t.<BR>\n" );
document.write( "t=28-j<BR>\n" );
document.write( "t=28-18<BR>\n" );
document.write( "t=10\r<BR>\n" );
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document.write( "Final Numeric Result: Terry is 10 and John is 18. </SPAN>\n" );
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