document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=918406>Question 918406</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number by 9. What is the number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557044 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=557044\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number:  10T+U.<BR>\n" );
document.write( "Description transcribed:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%2BU=7 ALIGN=MIDDLE  ALT=\"T%2BU=7\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10U%2BT-%2810T%2BU%29=9 ALIGN=MIDDLE  ALT=\"10U%2BT-%2810T%2BU%29=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Be sure you understand that and can work with those equations.\r<BR>\n" );
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document.write( "The \"increase by 9\" equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10U%2BT-10T-U=9 ALIGN=MIDDLE  ALT=\"10U%2BT-10T-U=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9U-9T=9 ALIGN=MIDDLE  ALT=\"9U-9T=9\"   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%28U-T=1%29 ALIGN=MIDDLE  ALT=\"highlight_green%28U-T=1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplified system is now identifiable.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28system%28U%2BT=7%2CU-T=1%29%29 ALIGN=MIDDLE  ALT=\"highlight%28system%28U%2BT=7%2CU-T=1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This system is perfectly ready for solving using the elimination method.\r<BR>\n" );
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document.write( "Subtract corresponding members of the equations.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2T=6 ALIGN=MIDDLE  ALT=\"2T=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T=3 ALIGN=MIDDLE  ALT=\"T=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( "Add corresponding members of the equations.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2U=8 ALIGN=MIDDLE  ALT=\"2U=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U=4 ALIGN=MIDDLE  ALT=\"U=4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( "The original number is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%2A10%2B4%2A1=highlight%2834%29%29 ALIGN=MIDDLE  ALT=\"highlight%283%2A10%2B4%2A1=highlight%2834%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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