a+7=9a

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Solution for a+7=9a equation: 



a+7=9a

We move all terms to the left:

a+7-(9a)=0

We add all the numbers together, and all the variables

-8a+7=0

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

-8a=-7

a=-7/-8

a=7/8

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