Mathematics, 08.07.2019 09:00 UratazZ

4x+5y-5z=196 -11x-7y+12z=-211 -8x-9y-z=-236 solve for x y z

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4x+5y-5z=196 -11x-7y+12z=-211 -8x-9y-z=-236 solve for x y z...