document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=676152>Question 676152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the system using any method. <BR>\n" );
document.write( "5x-3y+7z=25<BR>\n" );
document.write( "   x+2y+z=9  <BR>\n" );
document.write( " 3y-z=3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #420204 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=420204\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint:\r<BR>\n" );
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document.write( "3y-z=3\r<BR>\n" );
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document.write( "z = 3y - 3\r<BR>\n" );
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document.write( "x+2y+z=9 \r<BR>\n" );
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document.write( "x+2y+3y-3=9 \r<BR>\n" );
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document.write( "x+5y = 12\r<BR>\n" );
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document.write( "5x-3y+7z=25\r<BR>\n" );
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document.write( "5x-3y+7(3y-3)=25\r<BR>\n" );
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document.write( "5x-3y+21y-21=25\r<BR>\n" );
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document.write( "5x+18y=46\r<BR>\n" );
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document.write( "So we then get the system\r<BR>\n" );
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document.write( "x+5y = 12<BR>\n" );
document.write( "5x+18y=46\r<BR>\n" );
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document.write( "Solve this for x and y. Then use y to find z. </SPAN>\n" );
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