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Mathematics, 31.10.2019 19:31 ellathornburg

The following system has a solution of x = -5, y = 9, z = 11.
4x + y + z = 12
-4x-y-z=-10
5y-z = 9
select the best answer from the choices provided
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The following system has a solution of x = -5, y = 9, z = 11.
4x + y + z = 12
-4x-y-z=-1...
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