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2x-2y+z=3 5y-z=-31 x+3y+2z=-21​
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2x-2y+z=3 5y-z=-31 x+3y+2z=-21​

User Sharri
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1 Answer

5 votes

Answer:

Explanation:

{x,y,z}={−5,−6,1}

User Charles Baylis
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