SOLUTION: x+3y-z=1 -2x-6y+z=-3 3x+5y-2z=4

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Question 358865: x+3y-z=1
-2x-6y+z=-3
3x+5y-2z=4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%283%2C3%2C1%2C3%2C-1%2C-2%2C-6%2C1%2C3%2C5%2C-2%29%29
[x]=%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29
[b]=%28matrix%283%2C1%2C1%2C-3%2C4%29%29
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[A][x]=[b]
[x]=[A]inv[b]
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det[A]=-1%2F4
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[A]inv=-%281%2F4%29%2A%28matrix%283%2C3%2C7%2C1%2C-3%2C-1%2C1%2C1%2C8%2C4%2C0%29%29
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[x]=%28matrix%283%2C1%2C2%2C0%2C1%29%29