document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=370396>Question 370396</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I must solve the equation using the add/subtract method\r<BR>\n" );
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document.write( "3x+9y=9<BR>\n" );
document.write( "-x+5y=-3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #264021 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=264021\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I must solve the equation using the add/subtract method <BR>\n" );
document.write( "3x+9y=9<BR>\n" );
document.write( "-x+5y=-3<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Multiply thru the lower equation by 3:<BR>\n" );
document.write( "3x+9y = 9<BR>\n" );
document.write( "-3x+15y = -9<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Add the two equations and solve for \"y\":<BR>\n" );
document.write( "25y = 0<BR>\n" );
document.write( "y = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Substitute into -x+5y = -3 and solve for \"x\":<BR>\n" );
document.write( "-x+0 = -3<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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