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Solve the following equations using matrices.

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x+4y-z=4 4x-8y+z=5 -4x+4y-5z=-2?

 

 

asked Sep 30, 2014 in ALGEBRA 2 by anonymous

2 Answers

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The equations are x  + 4y  - z  = 4

4x  - 8y + = 5

- 4x + 4y  - 5z  = - 2

Convert the equations into matrix form AX  = B.

Where A  is coefficient matrix , is variable matrix and B  is constant matrix.

Now solve the equations in Cramer's method.

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answered Oct 1, 2014 by david Expert
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Contd...

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Solution x  = 2, = 1/4, = -1.

answered Oct 1, 2014 by david Expert

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