document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170330>Question 170330</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321269470/algebrahomeworkh>Introductory Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the substitution method\r<BR>\n" );
document.write( "\n" );
document.write( "x + y = -4<BR>\n" );
document.write( "y = -3x + 2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125849 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=125849\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2B+y+=+-4 ALIGN=MIDDLE  ALT=\"x+%2B+y+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, EQN 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+-3x+%2B+2 ALIGN=MIDDLE  ALT=\"y+=+-3x+%2B+2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, EQN 2<BR>\n" );
document.write( "In EQN 1, we get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-x-4 ALIGN=MIDDLE  ALT=\"y=-x-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, EQN 3 ---> subst. in EQN 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x-4=-3x%2B2 ALIGN=MIDDLE  ALT=\"-x-4=-3x%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, combine similar terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x%2B3x=2%2B4 ALIGN=MIDDLE  ALT=\"-x%2B3x=2%2B4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=6 ALIGN=MIDDLE  ALT=\"2x=6\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%282%29x%2Fcross%282%29=cross%286%293%2Fcross%282%29 ALIGN=MIDDLE  ALT=\"cross%282%29x%2Fcross%282%29=cross%286%293%2Fcross%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=3%29 ALIGN=MIDDLE  ALT=\"highlight%28x=3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <BR>\n" );
document.write( "Subst. in EQN 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2By=-4 ALIGN=MIDDLE  ALT=\"3%2By=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-4-3=highlight%28-7=y%29 ALIGN=MIDDLE  ALT=\"y=-4-3=highlight%28-7=y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "See graph<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-8%2C8%2C-8%2C8%2Cgrid%281%29%2Cgraph%28300%2C300%2C-8%2C8%2C-8%2C8%2C-x-4%2C-3x%2B2%29%2Cblue%28circle%283%2C-7%2C.15%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ---> see point of intersection (3,-7)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Thank you,<BR>\n" );
document.write( "Jojo </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );