juanpablovazque juanpablovazque

01-11-2017
Mathematics

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Simplify -3xy 3 + 7xy 3 + (-xy 3) + (-3xy 3).

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kimmy827 kimmy827

01-11-2017

I thing the answer is 75 I may be wrong but that’s what I got

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tejanoajet tejanoajet

01-11-2017

-3xy 3 + 7xy 3 + (-xy 3) + (-3xy 3).

First combine like terms:
-3xy 3 + (-3xy 3) + 7xy 3 + (-xy 3)

-3xy3 + -3xy3 = -6xy3
7xy3 + -xy3 = 6xy3

The answer is 7xy3 + 6xy3

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