81=9n+18

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Solution for 81=9n+18 equation:



81=9n+18
We move all terms to the left:
81-(9n+18)=0
We get rid of parentheses
-9n-18+81=0
We add all the numbers together, and all the variables
-9n+63=0
We move all terms containing n to the left, all other terms to the right
-9n=-63
n=-63/-9
n=+7

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