SOLUTION: If possible, solve the system of equations using an inverse matrix. x+2y+z=-3 3x+7y-2z=25 x-y-6z=27

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Question 370213: If possible, solve the system of equations using an inverse matrix.
x+2y+z=-3
3x+7y-2z=25
x-y-6z=27
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%283%2C3%2C1%2C2%2C1%2C3%2C7%2C-2%2C1%2C-1%2C-6%29%29
[x]=%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29
[b]=%28matrix%283%2C1%2C-3%2C25%2C27%29%29
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det[A}=-22
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[A]inv=-%281%2F22%29%2A%28matrix%283%2C3%2C-44%2C11%2C-11%2C16%2C-7%2C5%2C-10%2C3%2C1%29%29
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[x]=%28matrix%283%2C1%2C-5%2C4%2C-6%29%29