15n+45=99-3n

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Solution for 15n+45=99-3n equation: 



15n+45=99-3n

We move all terms to the left:

15n+45-(99-3n)=0

We add all the numbers together, and all the variables

15n-(-3n+99)+45=0

We get rid of parentheses

15n+3n-99+45=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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