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2x-y-z=15 4x+5y+2z=10 -X-4y+3z=-20​
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2x-y-z=15 4x+5y+2z=10 -X-4y+3z=-20​

User Rosanna
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1 Answer

5 votes

Answer:

{x,y,z}={2,2,−2}

Explanation:

User John Velman
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