document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=194909>Question 194909</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9781567655858/algebrahomeworkh>Integrated Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please solve:<BR>\n" );
document.write( "x+3y=9<BR>\n" );
document.write( "x=3<BR>\n" );
document.write( "What happens when there is no y\r<BR>\n" );
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document.write( "also problem #12, what happens when there is no x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146212 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=146212\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Garamond\" size=\"+2\">\r<BR>\n" );
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document.write( "Remember that a linear equation is a rule that describes a set of ordered pairs, the coordinates of which make the equation a true statement.  So, if you don't have a y variable, such as in x = 3, then you are describing the set of ordered pairs where 3 is always the x coordinate, and the y coordinate can be anything -- in other words, a vertical line that intersects the x-axis at (3,0).\r<BR>\n" );
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document.write( "If there is no x variable, then you have a horizontal line.\r<BR>\n" );
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document.write( "For the system:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ x + 3y = 9\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ x = 3\">\r<BR>\n" );
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document.write( "You are given the value of x, so just substitute it into the first equation:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 3 + 3y = 9\">\r<BR>\n" );
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document.write( "And solve for y.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
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