SOLUTION: Use matrices to solve the system of equation. 2x+y+3z= 3 -2x-y+z=5 4x-2y+2z=2

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Question 917643: Use matrices to solve the system of equation.
2x+y+3z= 3
-2x-y+z=5
4x-2y+2z=2
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=%28matrix%283%2C3%2C%0D%0A2%2C1%2C3%2C%0D%0A-2%2C-1%2C1%2C%0D%0A4%2C-2%2C2%29%29
abs%28A%29=32
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.
A%5Bx%5D=%28matrix%283%2C3%2C%0D%0A3%2C1%2C3%2C%0D%0A5%2C-1%2C1%2C%0D%0A2%2C-2%2C2%29%29
abs%28A%5Bx%5D%29=-32
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.
A%5By%5D=%28matrix%283%2C3%2C%0D%0A2%2C3%2C3%2C%0D%0A-2%2C5%2C1%2C%0D%0A4%2C2%2C2%29%29
abs%28A%5By%5D%29=-32
.
.
A%5Bz%5D=%28matrix%283%2C3%2C%0D%0A2%2C1%2C3%2C%0D%0A-2%2C-1%2C5%2C%0D%0A4%2C-2%2C2%29%29
abs%28A%5Bz%5D%29=64
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.
x=abs%28A%5Bx%5D%29%2Fabs%28A%29=%28-32%29%2F%2832%29=-1
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y=abs%28A%5By%5D%29%2Fabs%28A%29=%28-32%29%2F%2832%29=-1
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z=abs%28A%5Bz%5D%29%2Fabs%28A%29=%2864%29%2F%2832%29=2
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