document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=46721>Question 46721</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0072549017/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system by substitution.Please<BR>\n" );
document.write( "     3x – y = –7<BR>\n" );
document.write( "       x + y = –9<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31045 by </B><A HREF=/tutors/aboutme.mpl?userid=adamchapman><B>adamchapman(301)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamchapman><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=31045\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x – y = –7<BR>\n" );
document.write( "------> y=3x-7<BR>\n" );
document.write( "x + y = –9<BR>\n" );
document.write( "substitute y=3x-7 into the expression above:<BR>\n" );
document.write( "x+3x-7=-9<BR>\n" );
document.write( "4x=16<BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "subsitute x=4 into y=3x-7:<BR>\n" );
document.write( "y=12-7<BR>\n" );
document.write( "y=5\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "I hope this helps,<BR>\n" );
document.write( "Adam<BR>\n" );
document.write( "P.S. please visit my website, it may be helpful to you. The address is www.geocities.com/quibowibbler </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );