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 Sep 5, 2018
 #1
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We can start by simplifing this equation. 14 + 7 + (-1) = 21 is equal to 14 + 7 - 1 = 21

Now, we can simplify this equation to 21 - 1 = 21.

21 - 1 is 20. Further simplifing this equation to 20 = 21. As you can see, 20 does not equal 21. Therefore, this equation is FALSE.

 Sep 5, 2018

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