document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=91568>Question 91568</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve each of the following systems by substitution:\r<BR>\n" );
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document.write( "8x-4y=16<BR>\n" );
document.write( "    y=2x-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66507 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=66507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8x-4y+=+16 ALIGN=MIDDLE  ALT=\"8x-4y+=+16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+2x-4 ALIGN=MIDDLE  ALT=\"y+=+2x-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute this for y in the first equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8x-4%282x-4%29+=+16 ALIGN=MIDDLE  ALT=\"8x-4%282x-4%29+=+16\"   DISABLED_style= \"max-width:90%; height:auto;\" > Apply the distributive property.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8x-8x%2B16+=+16 ALIGN=MIDDLE  ALT=\"8x-8x%2B16+=+16\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like-terms.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16+=+16 ALIGN=MIDDLE  ALT=\"16+=+16\"   DISABLED_style= \"max-width:90%; height:auto;\" > Consistent!<BR>\n" );
document.write( "The system is a consistent system because it has at least one solution, and the equations are dependent equations.<BR>\n" );
document.write( "The graphs of the lines represented by these two equations coincide which means that there are an infinite number of solutions.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-5%2C5%2C-5%2C5%2C2x-4%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-5%2C5%2C-5%2C5%2C2x-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-5%2C5%2C-5%2C5%2C2x-4%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-5%2C5%2C-5%2C5%2C2x-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );