document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=857826>Question 857826</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I was 28 years old when my son was born. Today, two times the difference of my age and four equals 10 times my son's age now. How old are we today? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #516857 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=516857\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I was 28 years old when my son was born. Today, two times the difference of my age and four equals 10 times my son's age now. How old are we today?<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "f = s + 28<BR>\n" );
document.write( "2(f-4)= 10s<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "Modify and substitute for \"f\":<BR>\n" );
document.write( "2(s+28 -4) = 10s<BR>\n" );
document.write( "2s + 48 = 10s<BR>\n" );
document.write( "8s = 48<BR>\n" );
document.write( "son's age now = 6 yrs<BR>\n" );
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document.write( "f = s + 28<BR>\n" );
document.write( "f = 34 <BR>\n" );
document.write( "father's age now is 34<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================= </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );