12-n(-3)=-54

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Solution for 12-n(-3)=-54 equation: 



12-n(-3)=-54

We move all terms to the left:

12-n(-3)-(-54)=0

We add all the numbers together, and all the variables

-n(-3)+66=0

We multiply parentheses

3n+66=0

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

3n=-66

n=-66/3

n=-22

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