9u-27=-81

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Solution for 9u-27=-81 equation: 



9u-27=-81

We move all terms to the left:

9u-27-(-81)=0

We add all the numbers together, and all the variables

9u+54=0

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

9u=-54

u=-54/9

u=-6

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