document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=741117>Question 741117</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the solution set for one of the following systems of equations, try to use the elimination method:\r<BR>\n" );
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document.write( "1) -7y + 2x = 15 and 4y - 2x = -9<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451852 by </B><A HREF=/tutors/aboutme.mpl?userid=only4christ2><B>only4christ2(12)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=only4christ2><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=451852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -7y + 2x = 15<BR>\n" );
document.write( "4y - 2x = -9<BR>\n" );
document.write( "_______________    add these as they are and the x's cancel out; you get:\r<BR>\n" );
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document.write( "-3y = 6<BR>\n" );
document.write( "y = -2\r<BR>\n" );
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document.write( "Substitute this back into either of the equation to find x:\r<BR>\n" );
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document.write( "Using the first one:\r<BR>\n" );
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document.write( "-7y + 2x = 15 becomes<BR>\n" );
document.write( "-7(-2) + 2x = 15<BR>\n" );
document.write( "14 + 2x = 15<BR>\n" );
document.write( "2x = 1<BR>\n" );
document.write( "x = 1/2 </SPAN>\n" );
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