Fitch deduction question, ((A ∧ B) → C ⊢ A → (B → C))

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I have been at this for 6 hours. I can't figure it out and I don't know what else to do. Please help. My problem is I don't know how to do this without assuming A&B. Here's the furthest I got:

(A ∧ B) → C ⊢ A → (B → C)

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