document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1014507>Question 1014507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5.8\r<BR>\n" );
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document.write( "Solve the given system of equations\r<BR>\n" );
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document.write( "5x+2y-5z=11<BR>\n" );
document.write( "2x-5y+2z=-1<BR>\n" );
document.write( "4x-3y+4z=19\r<BR>\n" );
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document.write( "The solution set is { }\r<BR>\n" );
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document.write( "I got {4,3,3} is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #630782 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=630782\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you are correct<BR>\n" );
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document.write( "1) 5x +2y -5z = 11<BR>\n" );
document.write( "2) 2x -5y +2z = -1<BR>\n" );
document.write( "3) 4x -3y +4z = 19<BR>\n" );
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document.write( "multiply 2) by 2 and subtract from 3)<BR>\n" );
document.write( "7y = 21<BR>\n" );
document.write( "y = 3<BR>\n" );
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document.write( "substitute for y in 1) and 2)<BR>\n" );
document.write( "5x +6 - 5z = 11<BR>\n" );
document.write( "5x -5z = 5<BR>\n" );
document.write( "x - z = 1<BR>\n" );
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document.write( "2x -15 + 2z = -1<BR>\n" );
document.write( "2x +2z = 14<BR>\n" );
document.write( "x + z = 7<BR>\n" );
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document.write( "solve first for x<BR>\n" );
document.write( "x = z+ 1<BR>\n" );
document.write( "now substitute for x in second <BR>\n" );
document.write( "z+1 +z = 7<BR>\n" );
document.write( "2z = 6<BR>\n" );
document.write( "z = 3<BR>\n" );
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document.write( "now substitute for y=3 and z=3 in equation 1)<BR>\n" );
document.write( "5x +6 -15 = 11<BR>\n" );
document.write( "5x = 20<BR>\n" );
document.write( "x = 4<BR>\n" );
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document.write( "solution set is (4, 3, 3)<BR>\n" );
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