document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=659783>Question 659783</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The units digit of a two-digit number is twice the tens digit. 1/2 the sum of the digits is equal to 2 less than the units digit. 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 #410920 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=410920\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = units<BR>\n" );
document.write( "y = tens\r<BR>\n" );
document.write( "\n" );
document.write( "x = 2y<BR>\n" );
document.write( "(1/2)(x + y) = x - 2<BR>\n" );
document.write( "Substitute x into the second equation<BR>\n" );
document.write( "(1/2)(2y + y) = 2y - 2<BR>\n" );
document.write( "Combine like terms<BR>\n" );
document.write( "(1/2)(3y) = 2y - 2<BR>\n" );
document.write( "1.5y = 2y - 2<BR>\n" );
document.write( "1.5y - 2y = 2y - 2 - 2y<BR>\n" );
document.write( "-.5y = -2<BR>\n" );
document.write( "-.5y/-.5 = -2/-.5<BR>\n" );
document.write( "y = 4\r<BR>\n" );
document.write( "\n" );
document.write( "Solve x using y<BR>\n" );
document.write( "x = 2y = 2(4) = 8\r<BR>\n" );
document.write( "\n" );
document.write( "x is the unit 8<BR>\n" );
document.write( "y is the digit 4<BR>\n" );
document.write( "The number is 48 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );