3(13-n)=-42

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Solution for 3(13-n)=-42 equation: 



3(13-n)=-42

We move all terms to the left:

3(13-n)-(-42)=0

We add all the numbers together, and all the variables

3(-1n+13)-(-42)=0

We add all the numbers together, and all the variables

3(-1n+13)+42=0

We multiply parentheses

-3n+39+42=0

We add all the numbers together, and all the variables

-3n+81=0

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

-3n=-81

n=-81/-3

n=+27

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