-3(n-7)=12

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Solution for -3(n-7)=12 equation: 



-3(n-7)=12

We move all terms to the left:

-3(n-7)-(12)=0

We multiply parentheses

-3n+21-12=0

We add all the numbers together, and all the variables

-3n+9=0

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

-3n=-9

n=-9/-3

n=+3

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