9a+2a=55

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Solution for 9a+2a=55 equation: 



9a+2a=55

We move all terms to the left:

9a+2a-(55)=0

We add all the numbers together, and all the variables

11a-55=0

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

11a=55

a=55/11

a=5

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