document.write( "Question 928827: Solve by LU decomposition method 3x+2y+7z=4, 2x+3y+z=5, 3x+4y+z=7 \n" ); document.write( "
Algebra.Com's Answer #563865 by TimothyLamb(4379)\"\" \"About 
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3x+2y+7z=4
\n" ); document.write( "2x+3y+z=5
\n" ); document.write( "3x+4y+z=7
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "3x+2y+7z=4
\n" ); document.write( "2x+3y+z=5
\n" ); document.write( "3x+4y+z=7
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = 0.875
\n" ); document.write( "y = 1.125
\n" ); document.write( "z = -0.125
\n" ); document.write( "---
\n" ); document.write( "system matrix
\n" ); document.write( "3 2 7
\n" ); document.write( "2 3 1
\n" ); document.write( "3 4 1
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\n" ); document.write( "inverse of system matrix
\n" ); document.write( "0.125 -3.25 2.375
\n" ); document.write( "-0.125 2.25 -1.375
\n" ); document.write( "0.125 0.75 -0.625
\n" ); document.write( "---
\n" ); document.write( "determinant of system matrix = -8
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
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