18+15n=18n+9

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Solution for 18+15n=18n+9 equation: 



18+15n=18n+9

We move all terms to the left:

18+15n-(18n+9)=0

We get rid of parentheses

15n-18n-9+18=0

We add all the numbers together, and all the variables

-3n+9=0

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

-3n=-9

n=-9/-3

n=+3

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