15=3n+69

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Solution for 15=3n+69 equation: 



15=3n+69

We move all terms to the left:

15-(3n+69)=0

We get rid of parentheses

-3n-69+15=0

We add all the numbers together, and all the variables

-3n-54=0

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

-3n=54

n=54/-3

n=-18

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