-9+3n=-42

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Solution for -9+3n=-42 equation: 



-9+3n=-42

We move all terms to the left:

-9+3n-(-42)=0

We add all the numbers together, and all the variables

3n+33=0

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

3n=-33

n=-33/3

n=-11

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