2a-9a=3

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Solution for 2a-9a=3 equation: 



2a-9a=3

We move all terms to the left:

2a-9a-(3)=0

We add all the numbers together, and all the variables

-7a-3=0

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

-7a=3

a=3/-7

a=-3/7

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