5n+12n+3=57-n

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Solution for 5n+12n+3=57-n equation: 



5n+12n+3=57-n

We move all terms to the left:

5n+12n+3-(57-n)=0

We add all the numbers together, and all the variables

5n+12n-(-1n+57)+3=0

We add all the numbers together, and all the variables

17n-(-1n+57)+3=0

We get rid of parentheses

17n+1n-57+3=0

We add all the numbers together, and all the variables

18n-54=0

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

18n=54

n=54/18

n=3

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