SOLUTION: x+2y-Z=-7 2x+3y+4z=1 3x-2y+2=11 solve this system of equation using a matrix ONLY

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Question 386520: x+2y-Z=-7
2x+3y+4z=1
3x-2y+2=11
solve this system of equation using a matrix ONLY
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
[A]=%28matrix%283%2C3%2C1%2C2%2C-1%2C2%2C3%2C4%2C3%2C-2%2C0%29%29
[x]=%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29
[b]=%28matrix%283%2C1%2C-7%2C1%2C9%29%29
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[x]=[A]inv[b]
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[x]=%28matrix%283%2C1%2C1%2C-3%2C2%29%29