SOLUTION: x+6y_z=10 2x+3y+3z=17 3x_3y_2z=_9

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Question 1049013: x+6y_z=10
2x+3y+3z=17
3x_3y_2z=_9
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Check your mathematical operators.
Do you mean subtraction or negative value when you use "_".
The use of the dash "-" is more traditional.
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If that's what you mean, then using Cramer's rule,
A=%28matrix%283%2C3%2C%0D%0A1%2C6%2C-1%2C%0D%0A2%2C3%2C3%2C%0D%0A3%2C-3%2C-2%29%29
abs%28A%29=96
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A%5Bx%5D=%28matrix%283%2C3%2C%0D%0A10%2C6%2C-1%2C%0D%0A17%2C3%2C3%2C%0D%0A-9%2C-3%2C-2%29%29
abs%28A%5Bx%5D%29=96
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A%5By%5D=%28matrix%283%2C3%2C%0D%0A1%2C10%2C-1%2C%0D%0A2%2C17%2C3%2C%0D%0A3%2C-9%2C-2%29%29
abs%28A%5By%5D%29=192
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A%5Bz%5D=%28matrix%283%2C3%2C%0D%0A1%2C6%2C10%2C%0D%0A2%2C3%2C17%2C%0D%0A3%2C-3%2C-9%29%29
abs%28A%5Bz%5D%29=288
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So then,
x=abs%28A%5Bx%5D%29%2Fabs%28A%29=96%2F96=1
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y=abs%28A%5By%5D%29%2Fabs%28A%29=192%2F96=2
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z=abs%28A%5Bz%5D%29%2Fabs%28A%29=288%2F96=3