3(n-7)=57

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Solution for 3(n-7)=57 equation: 



3(n-7)=57

We move all terms to the left:

3(n-7)-(57)=0

We multiply parentheses

3n-21-57=0

We add all the numbers together, and all the variables

3n-78=0

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

3n=78

n=78/3

n=26

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