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09-10-2017
Mathematics

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SAT prep: Prove that 3x – 4 ( 5 – x ) is equivalent to 7x – 20

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abby0601 abby0601

09-10-2017

3x -4 (5 - x) = 7x -20
3x-20+4x=7x-20
7x-20=7x-20

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