document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=128719>Question 128719</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Having Trouble understanding the procedure for finding the answer.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "1) Solve the system using substitution of linear equations.\r<BR>\n" );
document.write( "\n" );
document.write( "the 2 linear equations are:\r<BR>\n" );
document.write( "\n" );
document.write( "a)2x + 3y = -4  b)y - 2x = 4\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #254770 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=254770\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the system using substitution of linear equations. <BR>\n" );
document.write( "the 2 linear equations are: <BR>\n" );
document.write( "a)2x + 3y = -4 <BR>\n" );
document.write( "b)y - 2x = 4 <BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "y = 2x+4<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Substitute into the other equation and solve for \"x\":<BR>\n" );
document.write( "2x + 3(2x+4) = -4<BR>\n" );
document.write( "8x + 12 = -4<BR>\n" );
document.write( "8x = -16<BR>\n" );
document.write( "x = -2<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Since y = 2x+4, y = 2(-2)+4 = 0<BR>\n" );
document.write( "-----------------------------------<BR>\n" );
document.write( "Solution (-2,0)<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );