document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455534>Question 455534</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the dads age in months is the same as his sons age in weeks.the grandpas age is twice the dads age and 8 times the grandsons age plus four years.\r<BR>\n" );
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document.write( "Dad:______                 Grandpa:______\r<BR>\n" );
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document.write( "Son:______ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312753 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=312753\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> g = grandpa's age in years<BR>\n" );
document.write( "d = dad's age in yrs<BR>\n" );
document.write( "s = grandson's age<BR>\n" );
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document.write( "Write an equation for each statement<BR>\n" );
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document.write( "the dads age in months is the same as his sons age in weeks.<BR>\n" );
document.write( "12d = 52s<BR>\n" );
document.write( "simplify, divide by 4<BR>\n" );
document.write( "3d = 13s<BR>\n" );
document.write( "3d - 13s = 0; this form for elimination<BR>\n" );
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document.write( "the grandpas age is twice the dads age<BR>\n" );
document.write( "g = 2d<BR>\n" );
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document.write( "And 8 times the grandsons age plus four years.<BR>\n" );
document.write( "g = 8s + 4 <BR>\n" );
document.write( "replace g with 2d<BR>\n" );
document.write( "2d = 8s + 4<BR>\n" );
document.write( "2d - 8s = 4<BR>\n" );
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document.write( "Two equations<BR>\n" );
document.write( "3d - 13s = 0<BR>\n" );
document.write( "2d -  8s = 4<BR>\n" );
document.write( "multiply the 1st equation by 2, the 2nd equation by 3, results<BR>\n" );
document.write( "6d - 26s = 0<BR>\n" );
document.write( "6d - 24s = 12<BR>\n" );
document.write( "----------------subtraction eliminates d, find s<BR>\n" );
document.write( " -2s = -12<BR>\n" );
document.write( "   s = 6 yrs is grandsons age<BR>\n" );
document.write( "then<BR>\n" );
document.write( "12d = 52s<BR>\n" );
document.write( "12d = 52(6)<BR>\n" );
document.write( "12d = 312<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=312%2F12 ALIGN=MIDDLE  ALT=\"312%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 26 yrs is dad's age<BR>\n" );
document.write( "and<BR>\n" );
document.write( "g = 2(26)<BR>\n" );
document.write( "g = 52 yrs is grandpa's age<BR>\n" );
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document.write( "Check solution in the statement:<BR>\n" );
document.write( "'Grandpa is 8 times the grandsons age plus four years.\"<BR>\n" );
document.write( "52 = 8(6) + 4<BR>\n" );
document.write( "52 = 48 + 4 </SPAN>\n" );
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