document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=56519>Question 56519</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8.3 #  28<BR>\n" );
document.write( "Solve by substitution<BR>\n" );
document.write( "Mcgraw Hill 6th editon,<BR>\n" );
document.write( "Thank you for your time!!<BR>\n" );
document.write( "4x-12y=5<BR>\n" );
document.write( "-x+3y=  -1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #38351 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=38351\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8.3 #  28<BR>\n" );
document.write( "Solve by substitution<BR>\n" );
document.write( "Mcgraw Hill 6th editon,<BR>\n" );
document.write( ":<BR>\n" );
document.write( "L1) 4x-12y=5<BR>\n" );
document.write( "L2) -x+3y=  -1<BR>\n" );
document.write( ": Solve L2) for x and substitute it in for the x in L1) and solve for y:<BR>\n" );
document.write( "-x+3y-3y=-1-3y<BR>\n" );
document.write( "-x=-1-3y<BR>\n" );
document.write( "-1(-x)=-1(-1-3y)<BR>\n" );
document.write( "L1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=highlight%281%2B3y%29 ALIGN=MIDDLE  ALT=\"x=highlight%281%2B3y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "L2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Ahighlight%281%2B3y%29-12y=5 ALIGN=MIDDLE  ALT=\"4%2Ahighlight%281%2B3y%29-12y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%281%29%2B4%283y%29-12y=5 ALIGN=MIDDLE  ALT=\"4%281%29%2B4%283y%29-12y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2B12y-12y=5 ALIGN=MIDDLE  ALT=\"4%2B12y-12y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4=5 ALIGN=MIDDLE  ALT=\"4=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Your y was eliminated and 4 does not = 5, therefore there is no solution.  Graphically, these line are parallel and never intersect.  We call these equations inconsistent.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );