document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=696182>Question 696182</A>: <I><SPAN STYLE=\"word-break: break-all;\"> mary is 24 years old. mary is twice as old as ana was when mary was as old as ana is now. how old is ana? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #428849 by </B><A HREF=/tutors/aboutme.mpl?userid=Stitch><B>Stitch(470)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Stitch><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=428849\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a tricky word problem.\r<BR>\n" );
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document.write( "Here is how you set it up.<BR>\n" );
document.write( "Let M = Mary's age<BR>\n" );
document.write( "Let A = Ana's age<BR>\n" );
document.write( "Let Y = # of years\r<BR>\n" );
document.write( "\n" );
document.write( "Equation 1: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+24 ALIGN=MIDDLE  ALT=\"M+=+24\"   DISABLED_style= \"max-width:90%; height:auto;\" > (From mary is 24 years old)<BR>\n" );
document.write( "Equation 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+-+Y+=+A ALIGN=MIDDLE  ALT=\"M+-+Y+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" > (From when mary was as old as ana is now)<BR>\n" );
document.write( "Equation 3: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+2%2A%28A+-+Y%29 ALIGN=MIDDLE  ALT=\"M+=+2%2A%28A+-+Y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > (From mary is twice as old as ana was)<BR>\n" );
document.write( "----------------------------------------------<BR>\n" );
document.write( "We know the value of M so we can solve equation 2 for A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+-+Y+=+A ALIGN=MIDDLE  ALT=\"M+-+Y+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+-+Y+=+A ALIGN=MIDDLE  ALT=\"24+-+Y+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now plug 24 - Y into equation 3 for A, and M= 24<BR>\n" );
document.write( "Equation 3: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+2%2A%28A+-+Y%29 ALIGN=MIDDLE  ALT=\"M+=+2%2A%28A+-+Y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+=+2%2A%28%2824+-+Y%29-Y%29 ALIGN=MIDDLE  ALT=\"24+=+2%2A%28%2824+-+Y%29-Y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Simplify the equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+=+2%2A%2824+-+2Y%29 ALIGN=MIDDLE  ALT=\"24+=+2%2A%2824+-+2Y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Simplify<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+=+48+-+4Y ALIGN=MIDDLE  ALT=\"24+=+48+-+4Y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Add 4Y to both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+%2B+4Y+=+48 ALIGN=MIDDLE  ALT=\"24+%2B+4Y+=+48\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Subtract 24 from both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4Y+=+24 ALIGN=MIDDLE  ALT=\"4Y+=+24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide both sides by 4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28Y+=+6%29 ALIGN=MIDDLE  ALT=\"highlight%28Y+=+6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Now we can solve equation 2 to find Ana's age<BR>\n" );
document.write( "Equation 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+-+Y+=+A ALIGN=MIDDLE  ALT=\"M+-+Y+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24+-+6+=+A ALIGN=MIDDLE  ALT=\"24+-+6+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2818+=+A%29 ALIGN=MIDDLE  ALT=\"highlight_green%2818+=+A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );