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solving system of three equations x+2y+2z=3 2x-3y+2z=5 x+y+z=-1...

solving system of three equations

x+2y+2z=3

2x-3y+2z=5

x+y+z=-1

x+2y+2z=3

2x-3y+2z=5

x+y+z=-1

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