-81=-45-8n

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Solution for -81=-45-8n equation: 



-81=-45-8n

We move all terms to the left:

-81-(-45-8n)=0

We add all the numbers together, and all the variables

-(-8n-45)-81=0

We get rid of parentheses

8n+45-81=0

We add all the numbers together, and all the variables

8n-36=0

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

8n=36

n=36/8

n=4+1/2

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