Question

Find the values of x, y and z, so as to satisfy the equations given below: x + y + z = 12; x + y – z = 6; x – y + z = 4

A x = 5, y = 4, z = – 3
B x = 5, y = – 4, z = 3
C x = 5, y = 4, z = 3
D x = 5, y = – 4, z = – 3
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