SOLUTION: solve 2x-y+z=7 x+y-z=-4 x+3y-2z=-11

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Question 330424: solve 2x-y+z=7
x+y-z=-4
x+3y-2z=-11
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%283%2C3%2C2%2C-1%2C1%2C1%2C1%2C-1%2C1%2C3%2C-2%29%29
[b]=%28matrix%283%2C1%2C7%2C4%2C-11%29%29
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det[A]=3
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[A]inv=-%281%2F3%29%2A%28matrix%283%2C3%2C1%2C1%2C0%2C1%2C-5%2C3%2C2%2C-7%2C3%29%29
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[x]=[A]inv[b]=%28matrix%283%2C1%2C1%2C-2%2C3%29%29