find the sum of 8x+3y-4z;6x-8y-2z ;2x+8y+7z
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8x+3y-4z+6x-8y-2z+2x+8y+7z
8x+6x+2x +3y-8y+8y -4z-2z+7z
16x + 3y + z
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here is your answer solved step by step
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