20(n+-1)-7=-1

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Solution for 20(n+-1)-7=-1 equation: 



20(n+-1)-7=-1

We move all terms to the left:

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

We add all the numbers together, and all the variables

20(n-1)-7-(-1)=0

We add all the numbers together, and all the variables

20(n-1)-6=0

We multiply parentheses

20n-20-6=0

We add all the numbers together, and all the variables

20n-26=0

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

20n=26

n=26/20

n=1+3/10

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