-12=4(n-1)

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Solution for -12=4(n-1) equation: 



-12=4(n-1)

We move all terms to the left:

-12-(4(n-1))=0



We calculate terms in parentheses: -(4(n-1)), so:

4(n-1)

We multiply parentheses

4n-4

Back to the equation:

-(4n-4)



We get rid of parentheses

-4n+4-12=0

We add all the numbers together, and all the variables

-4n-8=0

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

-4n=8

n=8/-4

n=-2

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