document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148678>Question 148678</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone help me solve the substitution method using this example.\r<BR>\n" );
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document.write( "2x + 7y =12<BR>\n" );
document.write( "      x=8 -4y\r<BR>\n" );
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document.write( "What is the soltuion  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109009 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=109009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x + 7y =12<BR>\n" );
document.write( "x=8 -4y <BR>\n" );
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document.write( "Substitute x= 8-4y into the 1st equation:<BR>\n" );
document.write( "2(8-4y) + 7y = 12<BR>\n" );
document.write( "16-8y + 7y = 12<BR>\n" );
document.write( "16 -y = 12<BR>\n" );
document.write( "y = 4<BR>\n" );
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document.write( "Substitute into x = 8-4y to solve for Y.<BR>\n" );
document.write( "x = 8-4*4<BR>\n" );
document.write( "x = -8<BR>\n" );
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document.write( "Solution<BR>\n" );
document.write( "x = -8; y = 4<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "Cheers, </SPAN>\n" );
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