3a+a-4a+-9a=9

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Solution for 3a+a-4a+-9a=9 equation: 



3a+a-4a+-9a=9

We move all terms to the left:

3a+a-4a+-9a-(9)=0

determiningTheFunctionDomain
3a+a-4a-9a-9+=0

We add all the numbers together, and all the variables

-9a=0

a=0/-9

a=0

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