document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=600846>Question 600846</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi im doing substitution. And i need help on this problem.\r<BR>\n" );
document.write( "\n" );
document.write( "y= 5x - 7<BR>\n" );
document.write( "-3x - 2y =-12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379533 by </B><A HREF=/tutors/aboutme.mpl?userid=lynnlo><B>lynnlo(4176)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lynnlo><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=379533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ANSWER: your problem -----y=5x-7<BR>\n" );
document.write( "                        -3x-2y=12<BR>\n" );
document.write( "                       y=3,x=2\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "      THIS IS AN EXAMPLE TO HELP:---------x^2+y^2=25---equation 1<BR>\n" );
document.write( "                                           y=x+1-------equation 2<BR>\n" );
document.write( "                                     x^2+y^2=25----equation 1<BR>\n" );
document.write( "                                  x^2+(x+1)^2=25---substitute x+1 for y<BR>\n" );
document.write( "                                  2x^2+2x-24=0-------simplify<BR>\n" );
document.write( "                                   2(x+4)(x-3)=0-------factor trinomial<BR>\n" );
document.write( "x= -4,(or)x=3---zero product property<BR>\n" );
document.write( "                              this is how to solve a linear quadratic system by substitution </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );