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## Answers

**+9x - 9x**

3y + 3a

Just remove/cancel (or whatever it was called ._.) the terms +9x and -9x. It will be equal to zero so we don't need that. Therefore the final answer isĀ

**3y+3a**

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Just remove/cancel (or whatever it was called ._.) the terms +9x and -9x. It will be equal to zero so we don't need that. Therefore the final answer isĀ