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08-12-2019
Mathematics

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Simplify each expression by combing like terms -12+3y-9

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08-12-2019

Answer:

-21 + 3y

Step-by-step explanation:

Just arrange to combine like terms.

-12 - 9 + 3y

-21 + 3y

You cannot add both of them because they are not like terms.

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