document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=264318>Question 264318</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 9x +3y=-51,-5x +y=39 solve using substitution method </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #194608 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=194608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9x +3y=-51,-5x +y=39 solve using substitution method<BR>\n" );
document.write( "im gtoing to use the second equation and solve for \"y\" since its already by its self.<BR>\n" );
document.write( "-5x +y=39 <BR>\n" );
document.write( "+5x....+5x<BR>\n" );
document.write( "y=39+5x<BR>\n" );
document.write( "now plug the value of \"y\" into the other equation<BR>\n" );
document.write( "9x +3y=-51<BR>\n" );
document.write( "9x+3(39+5x)=-51<BR>\n" );
document.write( "9x+3(39)+3(5x)=-51<BR>\n" );
document.write( "9x+117+15x=-51<BR>\n" );
document.write( "24x+117=-51<BR>\n" );
document.write( "-117....-117<BR>\n" );
document.write( "24x=-168<BR>\n" );
document.write( "x=-168/24<BR>\n" );
document.write( "x=-7<BR>\n" );
document.write( "now plug the value of \"x\" into the value for \"y\"<BR>\n" );
document.write( "y=39+5x<BR>\n" );
document.write( "y=39+5(-7)<BR>\n" );
document.write( "y=39-35<BR>\n" );
document.write( "y=4<BR>\n" );
document.write( "(-7,4)or x=-7 and y=4 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );