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Mathematics, 16.07.2019 05:30 HappyBeatrice1401

Simplify. 3(2x + 4y - 2z) + 7(x + y - 4z) a) 13x + 5y - 22z b) -x - 19y + 22z c) 13x + 19y - 34z d) -x - 5y + 34z 27

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