7n-1+1=-21

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Solution for 7n-1+1=-21 equation: 



7n-1+1=-21

We move all terms to the left:

7n-1+1-(-21)=0

We add all the numbers together, and all the variables

7n+21=0

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

7n=-21

n=-21/7

n=-3

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