3n-31=20

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Solution for 3n-31=20 equation: 



3n-31=20

We move all terms to the left:

3n-31-(20)=0

We add all the numbers together, and all the variables

3n-51=0

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

3n=51

n=51/3

n=17

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