thatsme8 thatsme8

04-01-2018
Mathematics

contestada

What is the mathematical answer to this equation
-3a+9=3a-9

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LucyVogel LucyVogel

04-01-2018

Well, one of the 3a’s is positive and the other is not so that would lead to 0. But there are 2 positive 9’s so add those up for 18

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