Subtract the sum of (9x-4y-2z)+(-8x+7y-3z) from the sum of (4x+5y-7z)+(-2x+6y-9z)
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Answer:(9x-4y-2z)+(-8x+7y-3z) first we should separate all X and X y and y and z and z so,
9x-8x-4y+7y-2z-3z
1x+3y-1z
Step-by-step explanation:
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