document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41943>Question 41943</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by substitution\r<BR>\n" );
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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 #27097 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=27097\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well, let us solve the second one for x and substitute and see what we get...so from\r<BR>\n" );
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document.write( "4x - 12y = 5<BR>\n" );
document.write( "-x + 3y = -1<BR>\n" );
document.write( "we have<BR>\n" );
document.write( "x = 3y + 1<BR>\n" );
document.write( "and then<BR>\n" );
document.write( "4(3y + 1) - 12y = 5<BR>\n" );
document.write( "12y + 4 - 12y = 5<BR>\n" );
document.write( "4 = 5<BR>\n" );
document.write( "You then ask, \"When does 4 = 5?\"<BR>\n" );
document.write( "Never of course.<BR>\n" );
document.write( "Your conclusion is there is no solution.  These lines are parallel. </SPAN>\n" );
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