document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=472735>Question 472735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sally is 12 years older than her brother matt. four years from now, matt will be two-thirds as old as sally will be four years from now. how old are they now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #324085 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=324085\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sally is 12 years older than her brother matt. <BR>\n" );
document.write( "four years from now, matt will be two-thirds as old as sally will be four years from now. <BR>\n" );
document.write( "how old are they now?<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "s = m + 12<BR>\n" );
document.write( "---<BR>\n" );
document.write( "m+4 = (2/3)(s+4)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Substitute for \"s\" and solve for \"m\":<BR>\n" );
document.write( "m+4 = (2/3)(m+16)<BR>\n" );
document.write( "3m+12 = 2m+32<BR>\n" );
document.write( "----<BR>\n" );
document.write( "m = 20 (Matt's age now)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "s = m + 12<BR>\n" );
document.write( "s = 32 (Sally's age now)<BR>\n" );
document.write( "===========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "stan H.<BR>\n" );
document.write( "==========\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );