-20n+7=-1-20n

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



-20n+7=-1-20n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

8!=0

There is no solution for this equation

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