If A $ B = A * B ( A + B), what is 3 $ (2 $ 1)? - ProProfs Discuss
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If A $ B = A * B - ( A + B), what is 3 $ (2 $ 1)?

This question is part of SAT Math Questions
Asked by Proprofs, Last updated: May 09, 2020

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proprofs

Proprofs

Answered Oct 09, 2018

-5

First, use the order of operations to find the parenthetical value of (2 $ 1), which is 21-3 or -1 Next, plug in -1 for (2 $ 1) to find 3 $ -1 = 3 -1 - (3 - 1) = -3 - 2 = -5
 

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