haileywheatbread haileywheatbread

03-11-2019
Mathematics

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x + 2y – 4z = 1
-2x – 4y + 4z = 6
-4x – 3y – 4z = 21

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nguyenminhnguyet82 nguyenminhnguyet82

03-11-2019

Answer:

x = - 1

y = - 3

z = -2

Step-by-step explanation:

Please see steps in the image attached here.

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