3(n-4)=-30

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Solution for 3(n-4)=-30 equation: 



3(n-4)=-30

We move all terms to the left:

3(n-4)-(-30)=0

We add all the numbers together, and all the variables

3(n-4)+30=0

We multiply parentheses

3n-12+30=0

We add all the numbers together, and all the variables

3n+18=0

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

3n=-18

n=-18/3

n=-6

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