-18+9n=-21n+18

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Solution for -18+9n=-21n+18 equation: 



-18+9n=-21n+18

We move all terms to the left:

-18+9n-(-21n+18)=0

We get rid of parentheses

9n+21n-18-18=0

We add all the numbers together, and all the variables

30n-36=0

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

30n=36

n=36/30

n=1+1/5

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