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15 September, 03:58

Simplify:-4 (7x - 3y - z) - (-6) (9x - z + 2)

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  1. 15 September, 04:08
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    step by step:

    -4 (7x - 3y - z) - (-6) (9x - z + 2) here's the problem

    (-28x + 12y + 4z) - (-54x + z - 12) multiply out

    26x + 12y + 3z - 12 combine like terms

    26x + 12y + 3z - 12 is your answer
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