Question

ax + by + cz
X=1, y= -1, z=2, a= -2, b=1, c = -2 ​

Answer 1

Answer:

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Step-by-step explanation:

ax+by+cz              substitute the given values

-2×1+1×-1-2×2

-2-1-4=-7

the answer is -7

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Answer 2

Answer:

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Step-by-step explanation:

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