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NEED HELP ASAP PLS will mark brain

NEED HELP ASAP PLS will mark brain-example-1

1 Answer

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Answer:

Explanation:

x + y + z = 6

2x - y + z = 3

3x + 2z = 9

3x - z = 0

3x + 2z = 9

-3x + z = 0

3z = 9

z = 3

x + y + 3 = 6

2x - y + 3 = 3

x + y = 3

2x -y = 0

3x = 3

x = 1

1 + y + 3 = 6

y + 4 = 6

y = 2

x = 1, y = 2, z = 3

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