2(2n=7)=21

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Solution for 2(2n=7)=21 equation: 



2(2n=7)=21

We move all terms to the left:

2(2n-(7))=0

We multiply parentheses

4n-14=0

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

4n=14

n=14/4

n=3+1/2

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