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19 September, 08:39

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

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  1. 19 September, 08:47
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    If you would like to simplify - 4 * (7x - 3y - z) - 6 - (-6) * (9x - z + 2), you can do this using the following steps:

    -4 * (7x - 3y - z) - 6 - (-6) * (9x - z + 2) = - 4 * 7x + 4 * 3y + 4z - 6 - (-6 * 9x + 6z - 6 * 2) = - 28x + 12y + 4z - 6 - (-54x + 6z - 12) = - 28x + 12y + 4z - 6 + 54x - 6z + 12 = - 28x + 54x + 12y + 4z - 6z + 12 - 6 = 26x + 12y - 2z + 6

    The correct result would be 26x + 12y - 2z + 6.
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