document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=857673>Question 857673</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x+3y=7  3x+3y=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #516744 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=516744\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+3y=7 <BR>\n" );
document.write( "x=7-3y\r<BR>\n" );
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document.write( " 3x+3y=9\r<BR>\n" );
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document.write( "3(7-3y) +3y=9\r<BR>\n" );
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document.write( "21-9y+3y=9\r<BR>\n" );
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document.write( "-6y= -12\r<BR>\n" );
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document.write( "y=2\r<BR>\n" );
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document.write( "find x by plugging y\r<BR>\n" );
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document.write( " </SPAN>\n" );
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