document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=719781>Question 719781</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve each system of equations by substitution method 8x+3y=-7<BR>\n" );
document.write( "                                                      x=3y+15 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #441511 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=441511\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8x+3y=-7<BR>\n" );
document.write( "x=3y+15<BR>\n" );
document.write( "8(3Y+15)+3Y=-7<BR>\n" );
document.write( "24Y+120+3Y=-7<BR>\n" );
document.write( "27Y=-7-120<BR>\n" );
document.write( "27Y=-127<BR>\n" );
document.write( "Y=-127/27<BR>\n" );
document.write( "Y=-4.7037 ANS.<BR>\n" );
document.write( "X=3*-4.7037+15<BR>\n" );
document.write( "X=-14.111+15<BR>\n" );
document.write( "X=.8889 ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "8*.8889+3*-4.7037=-7<BR>\n" );
document.write( "7.111-14.111=-7<BR>\n" );
document.write( "-7=-7 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );