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What is the solution to the system of equations?

{2x + y - z = 7
{-x - 2y - 2z = -9
{x + 3y - 3z = 6
A: (3, 2, 1)
B: (3, 2, -1)
C: (-3, 2, 1)
D: (3, -2, 1)

User Ali Sadiq
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2 Answers

4 votes
The answer is B hope this helps
User Lutzh
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3 votes
i think B hope this helps!

User Darksaga
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