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i need help solving 3 linear equations with 3 variables using matrices

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X+2y-2z=-11, 2x +z =-6 and 5y -3z = -7 using a matrix:

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asked Feb 26, 2014 in ALGEBRA 2 by mathgirl Apprentice

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1 Answer

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Solution x = -5, y = 1, z = 4.

answered Feb 26, 2014 by dozey Mentor

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