document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=715019>Question 715019</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, how do you solve x/4-y/4=-1 and x+4y=-9 by substitution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #439159 by </B><A HREF=/tutors/aboutme.mpl?userid=JBarnum><B>JBarnum(2146)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JBarnum><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=JBarnum><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=439159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x/4-y/4=-1 <BR>\n" );
document.write( "I don't care for fractions so multiply by 4<BR>\n" );
document.write( "x-y=-4<BR>\n" );
document.write( "Lets solve for x<BR>\n" );
document.write( "x=y-4<BR>\n" );
document.write( "Substitute what x equals into below equation\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " x+4y=-9<BR>\n" );
document.write( "(y-4)+4y=9<BR>\n" );
document.write( "Solve for y<BR>\n" );
document.write( "5y=13<BR>\n" );
document.write( "y=13/5\r<BR>\n" );
document.write( "\n" );
document.write( "x=y-4<BR>\n" );
document.write( "x=13/5 - 4<BR>\n" );
document.write( "x=13/5 - 20/5<BR>\n" );
document.write( "x=-7/5 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );