20+20=2n-1

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Solution for 20+20=2n-1 equation: 



20+20=2n-1

We move all terms to the left:

20+20-(2n-1)=0

We add all the numbers together, and all the variables

-(2n-1)+40=0

We get rid of parentheses

-2n+1+40=0

We add all the numbers together, and all the variables

-2n+41=0

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

-2n=-41

n=-41/-2

n=20+1/2

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