SOLUTION: 2x+y+z=1, x-2y-3z=1, 3x+2y+4z=5 solve in cramer's rule

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Question 966740: 2x+y+z=1, x-2y-3z=1, 3x+2y+4z=5 solve in cramer's rule
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=%28matrix%283%2C3%2C%0D%0A2%2C1%2C1%2C%0D%0A1%2C-2%2C-3%2C%0D%0A3%2C2%2C4%29%29
abs%28A%29=-9
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A%5Bx%5D=%28matrix%283%2C3%2C%0D%0A1%2C1%2C1%2C%0D%0A1%2C-2%2C-3%2C%0D%0A5%2C2%2C4%29%29
abs%28A%5Bx%5D%29=-9
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A%5By%5D=%28matrix%283%2C3%2C%0D%0A2%2C1%2C1%2C%0D%0A1%2C1%2C-3%2C%0D%0A3%2C5%2C4%29%29
abs%28A%5By%5D%29=27
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A%5Bz%5D=%28matrix%283%2C3%2C%0D%0A2%2C1%2C1%2C%0D%0A1%2C-2%2C1%2C%0D%0A3%2C2%2C5%29%29
abs%28A%5Bz%5D%29=-18
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x=abs%28A%5Bx%5D%29%2Fabs%28A%29=%28-9%29%2F%28-9%29=1
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y=abs%28A%5By%5D%29%2Fabs%28A%29=%2827%29%2F%28-9%29=-3
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z=abs%28A%5Bz%5D%29%2Fabs%28A%29=%28-18%29%2F%28-9%29=2
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