3n-13=20+n

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Solution for 3n-13=20+n equation: 



3n-13=20+n

We move all terms to the left:

3n-13-(20+n)=0

We add all the numbers together, and all the variables

3n-(n+20)-13=0

We get rid of parentheses

3n-n-20-13=0

We add all the numbers together, and all the variables

2n-33=0

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

2n=33

n=33/2

n=16+1/2

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