document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=214809>Question 214809</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the sum of twelve and an unknown number is four times the unknown number.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #162266 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=162266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x is the unknown number<BR>\n" );
document.write( "12 + x = 4*x<BR>\n" );
document.write( "subtract x from both sides of this equation to get:<BR>\n" );
document.write( "12 = 3*x<BR>\n" );
document.write( "divide both sides of this equation by 3 to get:<BR>\n" );
document.write( "4 = x which is the same as:<BR>\n" );
document.write( "x = 4<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "let x = 4 in your original equation.<BR>\n" );
document.write( "12 + 4 = 4*4 becomes:<BR>\n" );
document.write( "16 = 16 confirming that x = 4 is a good number.<BR>\n" );
document.write( "----- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );