Solve the following equation for x, y, and z: x – y + z = –1 –x + y + z = –1 x + 2y – 2z = 5

1. 

Solve the following equation for x, y, and z:

x – y + z = –1   –x + y + z = –1   x + 2y – 2z = 5
[A]. x = 1, y = 1, z = –1
[B]. x = 5/3, y = 7/6, z = –1/2
[C]. x = –2/3, y = –2/3, z = –1
[D]. x = –1, y = 1, z = 1

Answer: Option A

Explanation:

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