document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=125168>Question 125168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following system by substitution\r<BR>\n" );
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document.write( "8x-4y=16<BR>\n" );
document.write( "y=2x-4\r<BR>\n" );
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document.write( "Show your solution below:\r<BR>\n" );
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document.write( "What is the solution for this system? \r<BR>\n" );
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document.write( "What type of system is this?\r<BR>\n" );
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document.write( "please help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #91750 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=91750\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the following system by substitution <BR>\n" );
document.write( "8x-4y=16<BR>\n" );
document.write( "y=2x-4 <BR>\n" );
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document.write( "Simplify the 1st equation:<BR>\n" );
document.write( "2x-y = 4<BR>\n" );
document.write( "Substitute to get:<BR>\n" );
document.write( "2x-(2x-4)=4<BR>\n" );
document.write( "2x-2x+4=4<BR>\n" );
document.write( "4=4<BR>\n" );
document.write( "=========<BR>\n" );
document.write( "This means the two original equations are really the same;<BR>\n" );
document.write( "one is a multiple of the other.<BR>\n" );
document.write( "The system is described as \"dependent\".<BR>\n" );
document.write( "The solution set is the set of all points on the line y = 2x-4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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