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All of the following expressions simplify to -4x + 9, except

(5x + 3) + (-9x + 6)
(x - 2) - (5x - 11)
(6x + 1) - (-10x + 8)
-4x + 2x + 9 - 2x

User Kengcc
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1 Answer

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(6x + 1) - (-10x + 8) this simplifies to 16x-7
User Metaphore
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