SOLUTION: Solve by LU decomposition method 3x+2y+7z=4, 2x+3y+z=5, 3x+4y+z=7
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Question 928827: Solve by LU decomposition method 3x+2y+7z=4, 2x+3y+z=5, 3x+4y+z=7
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
3x+2y+7z=4
2x+3y+z=5
3x+4y+z=7
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put the system of linear equations into standard form
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3x+2y+7z=4
2x+3y+z=5
3x+4y+z=7
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = 0.875
y = 1.125
z = -0.125
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system matrix
3 2 7
2 3 1
3 4 1
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inverse of system matrix
0.125 -3.25 2.375
-0.125 2.25 -1.375
0.125 0.75 -0.625
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determinant of system matrix = -8
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Solve and graph linear equations:
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
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