document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1002578>Question 1002578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question: Jake is 13 years old. In 3 years his grandpa will be twice as old as Jake's dad, and in 7 years his grandpa will be four times older than Jake. How old is Jake's dad?<BR>\n" );
document.write( "I've tried 13*4=52. 52-7=45. 45+3=48. 48/2=24. <BR>\n" );
document.write( "I'm not sure what steps I'm missing or what math I'm doing wrong </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #619445 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=619445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> j, g, d, for Jake, Grandpa, Dad\r<BR>\n" );
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document.write( "Examining the description very carefully, you should be able to form this system of equations:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28j=13%2Cg%2B3=2%28d%2B3%29%2Cg%2B7=4%28j%2B7%29%29 ALIGN=MIDDLE  ALT=\"system%28j=13%2Cg%2B3=2%28d%2B3%29%2Cg%2B7=4%28j%2B7%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "One of the variables is already given as known, so you can substitute for it now and you will have a system of two equations, just in the unknown variables, g and d.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28g%2B3=2d%2B6%2Cg%2B7=4j%2B28%29 ALIGN=MIDDLE  ALT=\"system%28g%2B3=2d%2B6%2Cg%2B7=4j%2B28%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28g=2d%2B3%2Cg=4j%2B21%29 ALIGN=MIDDLE  ALT=\"system%28g=2d%2B3%2Cg=4j%2B21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28g=2d%2B3%2Cg=4%2A13%2B21%29 ALIGN=MIDDLE  ALT=\"system%28g=2d%2B3%2Cg=4%2A13%2B21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%282d=g-3%2Cg=52%2B21%29 ALIGN=MIDDLE  ALT=\"system%282d=g-3%2Cg=52%2B21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28g=73%29 ALIGN=MIDDLE  ALT=\"highlight%28g=73%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---------Grandpa;<BR>\n" );
document.write( "but still you want to know d, from the other equation in the last system;\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2d=g-3 ALIGN=MIDDLE  ALT=\"2d=g-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2d=73-3 ALIGN=MIDDLE  ALT=\"2d=73-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=70%2F2 ALIGN=MIDDLE  ALT=\"d=70%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28highlight%28d=35%29%29 ALIGN=MIDDLE  ALT=\"highlight%28highlight%28d=35%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >-----------Jake's dad. </SPAN>\n" );
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