-40=-3n-1

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Solution for -40=-3n-1 equation: 



-40=-3n-1

We move all terms to the left:

-40-(-3n-1)=0

We get rid of parentheses

3n+1-40=0

We add all the numbers together, and all the variables

3n-39=0

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

3n=39

n=39/3

n=13

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