document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=625770>Question 625770</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8x+2y-z=34<BR>\n" );
document.write( "7x+3y-2z=40<BR>\n" );
document.write( "3x-5y+z=24 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #393851 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=393851\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8x+2y-z=34...............(1)<BR>\n" );
document.write( "7x+3y-2z=40...............(2)<BR>\n" );
document.write( "3x-5y+z=24...............(3)\r<BR>\n" );
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document.write( "Multiply (1) by -2 and add (2)<BR>\n" );
document.write( "-16x-4y+2z=-68<BR>\n" );
document.write( "7x+3y-2z=40<BR>\n" );
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document.write( "-9x-y=-28...............(4)\r<BR>\n" );
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document.write( "Multiply (3) by 2 and add (2)<BR>\n" );
document.write( "7x+3y-2z=40<BR>\n" );
document.write( "6x-10y+2z=48<BR>\n" );
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document.write( "13x-7y=88.................(5)\r<BR>\n" );
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document.write( "Multiply (4) by -7 and add (5)<BR>\n" );
document.write( "63x+7y=196<BR>\n" );
document.write( "13x-7y=88<BR>\n" );
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document.write( "76x=284<BR>\n" );
document.write( "Divide by 76 both sides of above equation<BR>\n" );
document.write( "76x/76=284/76<BR>\n" );
document.write( "x=71/19<BR>\n" );
document.write( "Put the value of y in (5)<BR>\n" );
document.write( "13x-7y=88.................(5)<BR>\n" );
document.write( "13(71/19)-7y=88<BR>\n" );
document.write( "13(71/19)-7y=88<BR>\n" );
document.write( "923/19-7y=88<BR>\n" );
document.write( "Multiply above equation by 19<BR>\n" );
document.write( "19(923/19-7y)=19(88)<BR>\n" );
document.write( "923-133y=1672<BR>\n" );
document.write( "-133y=1672-923<BR>\n" );
document.write( "-133y=749<BR>\n" );
document.write( "Divide by -133 both sides of above equation<BR>\n" );
document.write( "-133y/-133=749/-133<BR>\n" );
document.write( "y=-107/19\r<BR>\n" );
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document.write( "Put the value of x and y in (1)<BR>\n" );
document.write( "8x+2y-z=34...............(1)<BR>\n" );
document.write( "8(71/19)+2(-107/19)-z=34<BR>\n" );
document.write( "568/19-214/19-z=34<BR>\n" );
document.write( "-z=34-568/19+214/19<BR>\n" );
document.write( "Take LCD on Right hand side<BR>\n" );
document.write( "-z=(646-568+214)/19<BR>\n" );
document.write( "-z=(860-568)/19<BR>\n" );
document.write( "-z=292/19<BR>\n" );
document.write( "Multiply by (-) both sides of above equation<BR>\n" );
document.write( "z=-292/19\r<BR>\n" );
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document.write( "x,y,z=71/19,-107/19,-292/19\r<BR>\n" );
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document.write( "Check<BR>\n" );
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document.write( "Put the values of x,y and z in (1)<BR>\n" );
document.write( "8x+2y-z=34...............(1)<BR>\n" );
document.write( "8(71/19)+2(-107/19)-(-292/19)=34<BR>\n" );
document.write( "568/19-214/19+292/19=34<BR>\n" );
document.write( "Take LCD<BR>\n" );
document.write( "(568-214+292)/19=34<BR>\n" );
document.write( "(860-214)/19=34<BR>\n" );
document.write( "646/19=34<BR>\n" );
document.write( "34=34\r<BR>\n" );
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document.write( "Put the values of x,y and z in (2)<BR>\n" );
document.write( "7x+3y-2z=40...............(2)<BR>\n" );
document.write( "497/19-321/19+584/19=40<BR>\n" );
document.write( "Take LCD<BR>\n" );
document.write( "(497-321+584)/19=40<BR>\n" );
document.write( "(1081-321)/19=40<BR>\n" );
document.write( "760/19=40<BR>\n" );
document.write( "40=40\r<BR>\n" );
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document.write( " </SPAN>\n" );
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