document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331163>Question 331163</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by substitution method (linear equation) x-5y=4 and 3x-4y=12\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237399 by </B><A HREF=/tutors/aboutme.mpl?userid=AAfter.Com><B>AAfter.Com(18)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=AAfter.Com><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=237399\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-5y=4 => x = 5y + 4<BR>\n" );
document.write( "3x-4y=12 => 3(5y + 4) - 4y = 12<BR>\n" );
document.write( "=> 15y + 12 - 4y = 12<BR>\n" );
document.write( "=> 11y = 0<BR>\n" );
document.write( "=> y = 0<BR>\n" );
document.write( "Hence, x = 5y + 4 = 5X0 + 4 = 4<BR>\n" );
document.write( "Hence, the solution set is (4,0) </SPAN>\n" );
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