document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64291>Question 64291</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone help me?\r<BR>\n" );
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document.write( "1.)Solve the system of linear equations by using matrices: [9,3,4]  [x1]    [7<BR>\n" );
document.write( "                                                           [ 4,3,4] [x2] =  [8<BR>\n" );
document.write( "                                                           [1,1,1]  [x3]    [3\r<BR>\n" );
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document.write( "2. If logk4=2/3 then what does k = ?\r<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 #46290 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=46290\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the system of linear equations by using the matrices: [9,3,4][x1]=7<BR>\n" );
document.write( "[4,3,4][x2]=8<BR>\n" );
document.write( "[1,1,1][x3]=3\r<BR>\n" );
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document.write( "9       3       4       7<BR>\n" );
document.write( "4       3       4       8<BR>\n" );
document.write( "1       1       1       3<BR>\n" );
document.write( "R1=R1/9<BR>\n" );
document.write( "1       0.333333333     0.444444444     0.777777778<BR>\n" );
document.write( "4       3       4       8<BR>\n" );
document.write( "1       1       1       3<BR>\n" );
document.write( "R2=R2-4R1…..R3=R3-R1<BR>\n" );
document.write( "1       0.333333333     0.444444444     0.777777778<BR>\n" );
document.write( "0       1.666666667     2.222222222     4.888888889<BR>\n" );
document.write( "0       0.666666667     0.555555556     2.222222222<BR>\n" );
document.write( "R2=R2/(5/3)<BR>\n" );
document.write( "1       0.333333333     0.444444444     0.777777778<BR>\n" );
document.write( "0       1       1.333333333     2.933333333<BR>\n" );
document.write( "0       0.666666667     0.555555556     2.222222222<BR>\n" );
document.write( "R3=R3-R2*2/3<BR>\n" );
document.write( "1       0.333333333     0.444444444     0.777777778<BR>\n" );
document.write( "0       1       1.333333333     2.933333333<BR>\n" );
document.write( "0       0       -0.333333333    0.266666667<BR>\n" );
document.write( "R3=-R3*3<BR>\n" );
document.write( "1       0.333333333     0.444444444     0.777777778<BR>\n" );
document.write( "0       1       1.333333333     2.933333333<BR>\n" );
document.write( "0       0       1       -0.8<BR>\n" );
document.write( "R2=R2-R3*4/3….R1=R1-R3*4/9<BR>\n" );
document.write( "1       0.333333333     0       1.133333333<BR>\n" );
document.write( "0       1       0       4<BR>\n" );
document.write( "0       0       1       -0.8<BR>\n" );
document.write( "R1=R1-R2/3<BR>\n" );
document.write( "1       0       0       -0.2<BR>\n" );
document.write( "0       1       0       4<BR>\n" );
document.write( "0       0       1       -0.8<BR>\n" );
document.write( "HENCE   X1=-0.2 X2=4    X3=-0.8<BR>\n" );
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