-6x-9=-81

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Solution for -6x-9=-81 equation: 



-6x-9=-81

We move all terms to the left:

-6x-9-(-81)=0

We add all the numbers together, and all the variables

-6x+72=0

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

-6x=-72

x=-72/-6

x=+12

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