document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159585>Question 159585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My problem asks me this: <BR>\n" );
document.write( "Solve each system of linear equations. \r<BR>\n" );
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document.write( "y=x+2<BR>\n" );
document.write( "y=2x\r<BR>\n" );
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document.write( "Do I use the xy chart to help work this problem and where do I go from there?<BR>\n" );
document.write( "The problem has 2 variables and I don't know how to bring it down to one variable.<BR>\n" );
document.write( "Please help me!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117682 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=117682\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can actually just subtract the first equation from the second in this case.\r<BR>\n" );
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document.write( "This gives:\r<BR>\n" );
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document.write( "0=x-2<BR>\n" );
document.write( "2=x\r<BR>\n" );
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document.write( "And if x=2, y=4 by back substitution.\r<BR>\n" );
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document.write( "You could also solve by substitution, graphing, or other techniques from linear algebra (such as Cramer's Rule after some slight rearrangement).<BR>\n" );
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