document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511626>Question 511626</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mary is 9 years older than Seth. In a year, she will be 3 times as old as he is. Find their ages. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342307 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=342307\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mary is 9 years older than Seth. In a year, she will be 3 times as old as he is. Find their ages.<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "m = s + 9<BR>\n" );
document.write( "(m+1) = 3(s+1)<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Substitute for \"m\" and solve for \"s\":<BR>\n" );
document.write( "(s+9+1) = 3s+3<BR>\n" );
document.write( "s+10 = 3s+3<BR>\n" );
document.write( "2s = 7<BR>\n" );
document.write( "s = 3.5 years old<BR>\n" );
document.write( "---<BR>\n" );
document.write( "solve for \"m\":<BR>\n" );
document.write( "m = s+9<BR>\n" );
document.write( "m = 3.5+9<BR>\n" );
document.write( "m = 12.5 years old<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "=================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );