9a+3a=6a+6

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Solution for 9a+3a=6a+6 equation: 



9a+3a=6a+6

We move all terms to the left:

9a+3a-(6a+6)=0

We add all the numbers together, and all the variables

12a-(6a+6)=0

We get rid of parentheses

12a-6a-6=0

We add all the numbers together, and all the variables

6a-6=0

We move all terms containing a to the left, all other terms to the right

6a=6

a=6/6

a=1

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