(3+n)-11=20

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Solution for (3+n)-11=20 equation: 



(3+n)-11=20

We move all terms to the left:

(3+n)-11-(20)=0

We add all the numbers together, and all the variables

(n+3)-11-20=0

We add all the numbers together, and all the variables

(n+3)-31=0

We get rid of parentheses

n+3-31=0

We add all the numbers together, and all the variables

n-28=0

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

n=28

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