subtract 4 x- 2 y +z from the sum of 3x+4y+z and 6x+7y-8z
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Step-by-step explanation:
{(3x + 4y +z) + (6x +7y -8z )}- 4x-2y+z
= (9x +11y -7z)- 4x-2y+z
= 5x +9y-6z
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so it is your answer of your question
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