0.81=0.9a

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Solution for 0.81=0.9a equation: 



0.81=0.9a

We move all terms to the left:

0.81-(0.9a)=0

We add all the numbers together, and all the variables

-(+0.9a)+0.81=0

We get rid of parentheses

-0.9a+0.81=0

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

-0.9a=-0.81

a=-0.81/-0.9

a=0.81/0.9

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