SOLUTION: 2x+2y+3z=2 5x-2y+3z=0 x-5y-2z=-4

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Question 358359: 2x+2y+3z=2
5x-2y+3z=0
x-5y-2z=-4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%283%2C3%2C2%2C2%2C3%2C5%2C-2%2C3%2C1%2C-5%2C-2%29%29
[x]=%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29
[b]=%28matrix%283%2C1%2C2%2C0%2C-4%29%29
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[A][x]=[b]
[x]=[A]inv[b]
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det[A]=-5
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[A]inv=-%281%2F5%29%2A%28matrix%283%2C3%2C19%2C-11%2C12%2C13%2C-7%2C9%2C-23%2C12%2C-14%29%29
[x]=[A]inv[b]=%28matrix%283%2C1%2C2%2C2%2C-2%0D%0A%29%29