SOLUTION: solve the system of equtaions by gauss-elimination method x+y+z=9 x-2y+3z=8 2x+y-z=3

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Question 250951: solve the system of equtaions by gauss-elimination method
x+y+z=9
x-2y+3z=8
2x+y-z=3






Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Add 1 and 3,

4.
Multiply 3 by 3 and add to 2,

5.
Multiply 5 by -2 and add to 4.



Now work backwards,



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.



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(x,y,z)=(2,3,4)

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