document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181746>Question 181746</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Method of Substitution<BR>\n" );
document.write( "13. Explain why it would be appropriate to solve the following linear system either by substitution or by graphing.<BR>\n" );
document.write( "x+y=4<BR>\n" );
document.write( "y=2x+4<BR>\n" );
document.write( "Pleaseeeeeeeeeeeee and thankssssssss lotttttttt<BR>\n" );
document.write( "I need it today!!!!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136377 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=136377\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=4.......eq 1<BR>\n" );
document.write( "y=2x+4......eq 2<BR>\n" );
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document.write( "one reason substitution would work well here is because in eq 2, y is already isolated.<BR>\n" );
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document.write( "graphing could work but many times graphing is inaccurate in determining the exact solution.<BR>\n" );
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document.write( "substitution is MUCH more reliable, although in graphing you get a visual picture of the system and can actually see the lines intersect.<BR>\n" );
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