document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205087>Question 205087</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 18x - 12y = 18  x = y - 12 what is x? What is y?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #154817 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=154817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 18x - 12y = 18 <BR>\n" );
document.write( "x = y - 12 <BR>\n" );
document.write( "Substituting (y-12) for x in the first equation we get:<BR>\n" );
document.write( "18(y-12)-12y=18<BR>\n" );
document.write( "18y-216-12y=18<BR>\n" );
document.write( "6y=18+216<BR>\n" );
document.write( "6y=234<BR>\n" );
document.write( "y=234/6<BR>\n" );
document.write( "y=39 ans.<BR>\n" );
document.write( "x=39-12<BR>\n" );
document.write( "x=27 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "18*27-12*39=18<BR>\n" );
document.write( "486-468=18<BR>\n" );
document.write( "18=18 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );