find the sum of
8x-3y+11z , 5y-6x+7z , 9z+2x-8y
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8x-3y+11z , 5y-6x+7z , 9z+2x-8y
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71
Answer:
8x -3y +11z + 5y-6x+7z+9z+2x-8y
=4x - 6y+27z
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