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

User Shaun McCready
by
7.7k points

1 Answer

3 votes

Answer:

x = - 1

y = - 3

z = -2

Explanation:

Please see steps in the image attached here.

X + 2y – 4z = 1 -2x – 4y + 4z = 6 -4x – 3y – 4z = 21-example-1
User Aioros
by
8.2k points
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