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3(2x + 4y - 2z) + 7(x + y - 4z)
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3(2x + 4y - 2z) + 7(x + y - 4z)

User Dattel Klauber
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1 Answer

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Step:6x+12y-6z+7x+7y-28z
Answer:13x+19y-34z
User Stepozer
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