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How do you solve $x + y - z = 6$ $x+y-z=6$ , $2 x - y + z = - 9$ $2x-y+z=-9$ , and $x - 2 y + 3 z = 1$ $x-2y+3z=1$ using matrices?

1 Answer

May 24, 2016

x=-1. y= 23, z= 16

Explanation:

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