-9e=-81

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Solution for -9e=-81 equation: 



-9e=-81

We move all terms to the left:

-9e-(-81)=0

We add all the numbers together, and all the variables

-9e+81=0

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

-9e=-81

e=-81/-9

e=+9

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