Distributive property and combine like terms

How do you simplify this?
-3(4 - 2x + 3y - z) + 7(-1 - x + 2y + 2z)

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 -12 + 6x - 9y + 3z - 7 - 7x + 14y + 14z {used distributive property}
= -x + 5y + 17z - 19 {combined like terms}

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