-12+25=-2n+55

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Solution for -12+25=-2n+55 equation: 



-12+25=-2n+55

We move all terms to the left:

-12+25-(-2n+55)=0

We add all the numbers together, and all the variables

-(-2n+55)+13=0

We get rid of parentheses

2n-55+13=0

We add all the numbers together, and all the variables

2n-42=0

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

2n=42

n=42/2

n=21

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