3a+9=9+a

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



3a+9=9+a

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3a-a-9+9=0

We add all the numbers together, and all the variables

2a=0

a=0/2

a=0

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