2n+2(4+n)=20

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Solution for 2n+2(4+n)=20 equation: 



2n+2(4+n)=20

We move all terms to the left:

2n+2(4+n)-(20)=0

We add all the numbers together, and all the variables

2n+2(n+4)-20=0

We multiply parentheses

2n+2n+8-20=0

We add all the numbers together, and all the variables

4n-12=0

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

4n=12

n=12/4

n=3

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