document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=231939>Question 231939</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by substitution.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x-y=6<BR>\n" );
document.write( "x=y+2\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #171504 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=171504\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-y=6<BR>\n" );
document.write( "x=y+2<BR>\n" );
document.write( "(y+2)-y=6<BR>\n" );
document.write( "y+2-y=6<BR>\n" );
document.write( "0=6-4 <BR>\n" );
document.write( "0=2 no solution.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "x-y=6<BR>\n" );
document.write( "-y=-x+6<BR>\n" );
document.write( "y=x-6 (red line)<BR>\n" );
document.write( "x=y+2<BR>\n" );
document.write( "y=x-2 (green line)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x+-6%2C+x+-2%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x+-6%2C+x+-2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions x -6 and x -2).  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );