document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=699123>Question 699123</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "a number consists of two digits whose sum is 9.if 9 is added to the number ,its digits are reversed .find 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 #431212 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=431212\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 10x+y+9=10y+x<BR>\n" );
document.write( "x+y=9 or x=9-y<BR>\n" );
document.write( "10(9-y)+y+9=10y+(9-y)<BR>\n" );
document.write( "90-10y+y+9=10y+9-y<BR>\n" );
document.write( "-10y+y-10y+y=9-90-9<BR>\n" );
document.write( "-18y=-90<BR>\n" );
document.write( "y=-90/-18<BR>\n" );
document.write( "y=5 ans. for the original units digit.<BR>\n" );
document.write( "x=9-5<BR>\n" );
document.write( "x=4 ans. for the tebns digit.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "45+9=54 \r<BR>\n" );
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document.write( " </SPAN>\n" );
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