SOLUTION: x+y+z=6 x-y+z=2 2x+y-z=1

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Question 984756: x+y+z=6
x-y+z=2
2x+y-z=1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use Cramer's rule,
A=%28matrix%283%2C3%2C%0D%0A1%2C1%2C1%2C%0D%0A1%2C-1%2C1%2C%0D%0A2%2C1%2C-1%29%29
abs%28A%29=6
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A%5Bx%5D=%28matrix%283%2C3%2C%0D%0A6%2C1%2C1%2C%0D%0A2%2C-1%2C1%2C%0D%0A1%2C1%2C-1%29%29
abs%28A%5Bx%5D%29=6
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A%5By%5D=%28matrix%283%2C3%2C%0D%0A1%2C6%2C1%2C%0D%0A1%2C2%2C1%2C%0D%0A2%2C1%2C-1%29%29
abs%28A%5By%5D%29=12
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A%5Bz%5D=%28matrix%283%2C3%2C%0D%0A1%2C1%2C6%2C%0D%0A1%2C-1%2C2%2C%0D%0A2%2C1%2C1%29%29
abs%28A%5Bz%5D%29=18
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x=abs%28A%5Bx%5D%29%2Fabs%28A%29=6%2F6=1
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y=abs%28A%5By%5D%29%2Fabs%28A%29=12%2F6=2
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z=abs%28A%5Bz%5D%29%2Fabs%28A%29=18%2F6=3
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